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Finding the Fourth Proportional to 64,957.92, 89,641.60 and 35,149.92

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Solution

The fourth proportional to 64,957.92, 89,641.60 and 35,149.92 is: 48,506.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,957.92 : 89,641.60 = 35,149.92 : x
  2. Step 2: Convert to fraction form
    64,957.92/89,641.60 = 35,149.92/x
  3. Step 3: Cross multiply
    64,957.92x = 89,641.60 × 35,149.92
  4. Step 4: Simplify right side
    64,957.92x = 3,150,895,068.67
  5. Step 5: Solve for x
    x = 3,150,895,068.67/64,957.92
  6. Step 6: Final answer
    x = 48,506.71

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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.