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Finding the Fourth Proportional to 58,694.70, 81,013.14 and 36,039.12

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Solution

The fourth proportional to 58,694.70, 81,013.14 and 36,039.12 is: 49,742.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,694.70 : 81,013.14 = 36,039.12 : x
  2. Step 2: Convert to fraction form
    58,694.70/81,013.14 = 36,039.12/x
  3. Step 3: Cross multiply
    58,694.70x = 81,013.14 × 36,039.12
  4. Step 4: Simplify right side
    58,694.70x = 2,919,642,274.04
  5. Step 5: Solve for x
    x = 2,919,642,274.04/58,694.70
  6. Step 6: Final answer
    x = 49,742.86

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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.