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Finding the Fourth Proportional to 64,967.27, 89,676.42 and 38,099.97

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Solution

The fourth proportional to 64,967.27, 89,676.42 and 38,099.97 is: 52,590.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,967.27 : 89,676.42 = 38,099.97 : x
  2. Step 2: Convert to fraction form
    64,967.27/89,676.42 = 38,099.97/x
  3. Step 3: Cross multiply
    64,967.27x = 89,676.42 × 38,099.97
  4. Step 4: Simplify right side
    64,967.27x = 3,416,668,768.83
  5. Step 5: Solve for x
    x = 3,416,668,768.83/64,967.27
  6. Step 6: Final answer
    x = 52,590.62

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1.5x scale

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.