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Finding the Fourth Proportional to 83,801.59, 115,645.25 and 62,387.08

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Solution

The fourth proportional to 83,801.59, 115,645.25 and 62,387.08 is: 86,093.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,801.59 : 115,645.25 = 62,387.08 : x
  2. Step 2: Convert to fraction form
    83,801.59/115,645.25 = 62,387.08/x
  3. Step 3: Cross multiply
    83,801.59x = 115,645.25 × 62,387.08
  4. Step 4: Simplify right side
    83,801.59x = 7,214,769,330.22
  5. Step 5: Solve for x
    x = 7,214,769,330.22/83,801.59
  6. Step 6: Final answer
    x = 86,093.47

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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.