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Finding the Fourth Proportional to 64,952.72, 89,601.74 and 39,452.30

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Solution

The fourth proportional to 64,952.72, 89,601.74 and 39,452.30 is: 54,424.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,952.72 : 89,601.74 = 39,452.30 : x
  2. Step 2: Convert to fraction form
    64,952.72/89,601.74 = 39,452.30/x
  3. Step 3: Cross multiply
    64,952.72x = 89,601.74 × 39,452.30
  4. Step 4: Simplify right side
    64,952.72x = 3,534,994,753.74
  5. Step 5: Solve for x
    x = 3,534,994,753.74/64,952.72
  6. Step 6: Final answer
    x = 54,424.12

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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.