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Finding the Fourth Proportional to 48,695.76, 67,201.32 and 28,565.52

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Solution

The fourth proportional to 48,695.76, 67,201.32 and 28,565.52 is: 39,421.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,695.76 : 67,201.32 = 28,565.52 : x
  2. Step 2: Convert to fraction form
    48,695.76/67,201.32 = 28,565.52/x
  3. Step 3: Cross multiply
    48,695.76x = 67,201.32 × 28,565.52
  4. Step 4: Simplify right side
    48,695.76x = 1,919,640,650.49
  5. Step 5: Solve for x
    x = 1,919,640,650.49/48,695.76
  6. Step 6: Final answer
    x = 39,421.10

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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.