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Finding the Fourth Proportional to 49,875.80, 74,748.90 and 36,008.60

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Solution

The fourth proportional to 49,875.80, 74,748.90 and 36,008.60 is: 53,966.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,875.80 : 74,748.90 = 36,008.60 : x
  2. Step 2: Convert to fraction form
    49,875.80/74,748.90 = 36,008.60/x
  3. Step 3: Cross multiply
    49,875.80x = 74,748.90 × 36,008.60
  4. Step 4: Simplify right side
    49,875.80x = 2,691,603,240.54
  5. Step 5: Solve for x
    x = 2,691,603,240.54/49,875.80
  6. Step 6: Final answer
    x = 53,966.12

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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.