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Finding the Fourth Proportional to 64,957.52, 89,641.36 and 35,149.52

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Solution

The fourth proportional to 64,957.52, 89,641.36 and 35,149.52 is: 48,506.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,957.52 : 89,641.36 = 35,149.52 : x
  2. Step 2: Convert to fraction form
    64,957.52/89,641.36 = 35,149.52/x
  3. Step 3: Cross multiply
    64,957.52x = 89,641.36 × 35,149.52
  4. Step 4: Simplify right side
    64,957.52x = 3,150,850,776.15
  5. Step 5: Solve for x
    x = 3,150,850,776.15/64,957.52
  6. Step 6: Final answer
    x = 48,506.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.