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Finding the Fourth Proportional to 48,641.61, 72,851.70 and 33,861.59

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Solution

The fourth proportional to 48,641.61, 72,851.70 and 33,861.59 is: 50,715.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,641.61 : 72,851.70 = 33,861.59 : x
  2. Step 2: Convert to fraction form
    48,641.61/72,851.70 = 33,861.59/x
  3. Step 3: Cross multiply
    48,641.61x = 72,851.70 × 33,861.59
  4. Step 4: Simplify right side
    48,641.61x = 2,466,874,841.91
  5. Step 5: Solve for x
    x = 2,466,874,841.91/48,641.61
  6. Step 6: Final answer
    x = 50,715.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.