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Finding the Fourth Proportional to 14,030.76, 19,362.84 and 7,743.54

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Solution

The fourth proportional to 14,030.76, 19,362.84 and 7,743.54 is: 10,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,030.76 : 19,362.84 = 7,743.54 : x
  2. Step 2: Convert to fraction form
    14,030.76/19,362.84 = 7,743.54/x
  3. Step 3: Cross multiply
    14,030.76x = 19,362.84 × 7,743.54
  4. Step 4: Simplify right side
    14,030.76x = 149,936,926.05
  5. Step 5: Solve for x
    x = 149,936,926.05/14,030.76
  6. Step 6: Final answer
    x = 10,686.30

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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.