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Finding the Fourth Proportional to 64,473.70, 96,710.55 and 40,854.10

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Solution

The fourth proportional to 64,473.70, 96,710.55 and 40,854.10 is: 61,281.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,473.70 : 96,710.55 = 40,854.10 : x
  2. Step 2: Convert to fraction form
    64,473.70/96,710.55 = 40,854.10/x
  3. Step 3: Cross multiply
    64,473.70x = 96,710.55 × 40,854.10
  4. Step 4: Simplify right side
    64,473.70x = 3,951,022,480.76
  5. Step 5: Solve for x
    x = 3,951,022,480.76/64,473.70
  6. Step 6: Final answer
    x = 61,281.15

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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.