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Finding the Fourth Proportional to 58,800.71, 81,145.04 and 31,943.21

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Solution

The fourth proportional to 58,800.71, 81,145.04 and 31,943.21 is: 44,081.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,800.71 : 81,145.04 = 31,943.21 : x
  2. Step 2: Convert to fraction form
    58,800.71/81,145.04 = 31,943.21/x
  3. Step 3: Cross multiply
    58,800.71x = 81,145.04 × 31,943.21
  4. Step 4: Simplify right side
    58,800.71x = 2,592,032,487.74
  5. Step 5: Solve for x
    x = 2,592,032,487.74/58,800.71
  6. Step 6: Final answer
    x = 44,081.66

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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.