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Finding the Fourth Proportional to 47,963.60, 71,463.70 and 45,280.88

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Solution

The fourth proportional to 47,963.60, 71,463.70 and 45,280.88 is: 67,466.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,963.60 : 71,463.70 = 45,280.88 : x
  2. Step 2: Convert to fraction form
    47,963.60/71,463.70 = 45,280.88/x
  3. Step 3: Cross multiply
    47,963.60x = 71,463.70 × 45,280.88
  4. Step 4: Simplify right side
    47,963.60x = 3,235,939,224.06
  5. Step 5: Solve for x
    x = 3,235,939,224.06/47,963.60
  6. Step 6: Final answer
    x = 67,466.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.