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Finding the Fourth Proportional to 63,708, 95,582.16 and 28,650.72

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Solution

The fourth proportional to 63,708, 95,582.16 and 28,650.72 is: 42,985.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,708 : 95,582.16 = 28,650.72 : x
  2. Step 2: Convert to fraction form
    63,708/95,582.16 = 28,650.72/x
  3. Step 3: Cross multiply
    63,708x = 95,582.16 × 28,650.72
  4. Step 4: Simplify right side
    63,708x = 2,738,497,703.16
  5. Step 5: Solve for x
    x = 2,738,497,703.16/63,708
  6. Step 6: Final answer
    x = 42,985.15

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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.