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Finding the Fourth Proportional to 62,614.71, 86,417.16 and 38,749.08

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Solution

The fourth proportional to 62,614.71, 86,417.16 and 38,749.08 is: 53,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,614.71 : 86,417.16 = 38,749.08 : x
  2. Step 2: Convert to fraction form
    62,614.71/86,417.16 = 38,749.08/x
  3. Step 3: Cross multiply
    62,614.71x = 86,417.16 × 38,749.08
  4. Step 4: Simplify right side
    62,614.71x = 3,348,585,446.21
  5. Step 5: Solve for x
    x = 3,348,585,446.21/62,614.71
  6. Step 6: Final answer
    x = 53,479.21

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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.