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Finding the Fourth Proportional to 14,275.87, 19,700.08 and 7,902.08

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Solution

The fourth proportional to 14,275.87, 19,700.08 and 7,902.08 is: 10,904.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,275.87 : 19,700.08 = 7,902.08 : x
  2. Step 2: Convert to fraction form
    14,275.87/19,700.08 = 7,902.08/x
  3. Step 3: Cross multiply
    14,275.87x = 19,700.08 × 7,902.08
  4. Step 4: Simplify right side
    14,275.87x = 155,671,568.66
  5. Step 5: Solve for x
    x = 155,671,568.66/14,275.87
  6. Step 6: Final answer
    x = 10,904.53

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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.