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Finding the Fourth Proportional to 58,810.68, 81,171.57 and 36,169.15

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Solution

The fourth proportional to 58,810.68, 81,171.57 and 36,169.15 is: 49,921.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,810.68 : 81,171.57 = 36,169.15 : x
  2. Step 2: Convert to fraction form
    58,810.68/81,171.57 = 36,169.15/x
  3. Step 3: Cross multiply
    58,810.68x = 81,171.57 × 36,169.15
  4. Step 4: Simplify right side
    58,810.68x = 2,935,906,691.07
  5. Step 5: Solve for x
    x = 2,935,906,691.07/58,810.68
  6. Step 6: Final answer
    x = 49,921.32

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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.