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Finding the Fourth Proportional to 66,483.90, 99,591.45 and 41,447.10

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Solution

The fourth proportional to 66,483.90, 99,591.45 and 41,447.10 is: 62,086.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,483.90 : 99,591.45 = 41,447.10 : x
  2. Step 2: Convert to fraction form
    66,483.90/99,591.45 = 41,447.10/x
  3. Step 3: Cross multiply
    66,483.90x = 99,591.45 × 41,447.10
  4. Step 4: Simplify right side
    66,483.90x = 4,127,776,787.30
  5. Step 5: Solve for x
    x = 4,127,776,787.30/66,483.90
  6. Step 6: Final answer
    x = 62,086.86

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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.