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Finding the Fourth Proportional to 58,505.04, 80,715.92 and 33,340

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Solution

The fourth proportional to 58,505.04, 80,715.92 and 33,340 is: 45,997.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,505.04 : 80,715.92 = 33,340 : x
  2. Step 2: Convert to fraction form
    58,505.04/80,715.92 = 33,340/x
  3. Step 3: Cross multiply
    58,505.04x = 80,715.92 × 33,340
  4. Step 4: Simplify right side
    58,505.04x = 2,691,068,772.80
  5. Step 5: Solve for x
    x = 2,691,068,772.80/58,505.04
  6. Step 6: Final answer
    x = 45,997.21

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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.