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Finding the Fourth Proportional to 64,619.52, 96,957.60 and 31,365.12

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Solution

The fourth proportional to 64,619.52, 96,957.60 and 31,365.12 is: 47,061.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,619.52 : 96,957.60 = 31,365.12 : x
  2. Step 2: Convert to fraction form
    64,619.52/96,957.60 = 31,365.12/x
  3. Step 3: Cross multiply
    64,619.52x = 96,957.60 × 31,365.12
  4. Step 4: Simplify right side
    64,619.52x = 3,041,086,758.91
  5. Step 5: Solve for x
    x = 3,041,086,758.91/64,619.52
  6. Step 6: Final answer
    x = 47,061.43

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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.