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Finding the Fourth Proportional to 58,854.47, 81,220.74 and 31,998.79

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Solution

The fourth proportional to 58,854.47, 81,220.74 and 31,998.79 is: 44,159.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,854.47 : 81,220.74 = 31,998.79 : x
  2. Step 2: Convert to fraction form
    58,854.47/81,220.74 = 31,998.79/x
  3. Step 3: Cross multiply
    58,854.47x = 81,220.74 × 31,998.79
  4. Step 4: Simplify right side
    58,854.47x = 2,598,965,402.90
  5. Step 5: Solve for x
    x = 2,598,965,402.90/58,854.47
  6. Step 6: Final answer
    x = 44,159.18

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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.