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Finding the Fourth Proportional to 63,001.76, 86,941.32 and 34,707.20

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Solution

The fourth proportional to 63,001.76, 86,941.32 and 34,707.20 is: 47,895.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,001.76 : 86,941.32 = 34,707.20 : x
  2. Step 2: Convert to fraction form
    63,001.76/86,941.32 = 34,707.20/x
  3. Step 3: Cross multiply
    63,001.76x = 86,941.32 × 34,707.20
  4. Step 4: Simplify right side
    63,001.76x = 3,017,489,781.50
  5. Step 5: Solve for x
    x = 3,017,489,781.50/63,001.76
  6. Step 6: Final answer
    x = 47,895.33

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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.