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Finding the Fourth Proportional to 64,047.44, 96,129.76 and 32,479.29

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Solution

The fourth proportional to 64,047.44, 96,129.76 and 32,479.29 is: 48,748.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,047.44 : 96,129.76 = 32,479.29 : x
  2. Step 2: Convert to fraction form
    64,047.44/96,129.76 = 32,479.29/x
  3. Step 3: Cross multiply
    64,047.44x = 96,129.76 × 32,479.29
  4. Step 4: Simplify right side
    64,047.44x = 3,122,226,631.96
  5. Step 5: Solve for x
    x = 3,122,226,631.96/64,047.44
  6. Step 6: Final answer
    x = 48,748.65

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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.