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Finding the Fourth Proportional to 48,375.72, 66,749.94 and 29,518.92

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Solution

The fourth proportional to 48,375.72, 66,749.94 and 29,518.92 is: 40,730.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,375.72 : 66,749.94 = 29,518.92 : x
  2. Step 2: Convert to fraction form
    48,375.72/66,749.94 = 29,518.92/x
  3. Step 3: Cross multiply
    48,375.72x = 66,749.94 × 29,518.92
  4. Step 4: Simplify right side
    48,375.72x = 1,970,386,138.86
  5. Step 5: Solve for x
    x = 1,970,386,138.86/48,375.72
  6. Step 6: Final answer
    x = 40,730.89

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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.