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Finding the Fourth Proportional to 58,740.90, 81,060.27 and 31,882.84

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Solution

The fourth proportional to 58,740.90, 81,060.27 and 31,882.84 is: 43,997.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,740.90 : 81,060.27 = 31,882.84 : x
  2. Step 2: Convert to fraction form
    58,740.90/81,060.27 = 31,882.84/x
  3. Step 3: Cross multiply
    58,740.90x = 81,060.27 × 31,882.84
  4. Step 4: Simplify right side
    58,740.90x = 2,584,431,296.56
  5. Step 5: Solve for x
    x = 2,584,431,296.56/58,740.90
  6. Step 6: Final answer
    x = 43,997.14

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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.