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Finding the Fourth Proportional to 14,275.93, 19,700.14 and 7,902.76

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Solution

The fourth proportional to 14,275.93, 19,700.14 and 7,902.76 is: 10,905.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,275.93 : 19,700.14 = 7,902.76 : x
  2. Step 2: Convert to fraction form
    14,275.93/19,700.14 = 7,902.76/x
  3. Step 3: Cross multiply
    14,275.93x = 19,700.14 × 7,902.76
  4. Step 4: Simplify right side
    14,275.93x = 155,685,478.39
  5. Step 5: Solve for x
    x = 155,685,478.39/14,275.93
  6. Step 6: Final answer
    x = 10,905.45

Related Problems

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Half scale
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Double scale
Find fourth proportional to 14,276.93, 19,701.52 and 7,903.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.