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Finding the Fourth Proportional to 64,209.16, 88,615.26 and 36,986.17

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Solution

The fourth proportional to 64,209.16, 88,615.26 and 36,986.17 is: 51,044.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,209.16 : 88,615.26 = 36,986.17 : x
  2. Step 2: Convert to fraction form
    64,209.16/88,615.26 = 36,986.17/x
  3. Step 3: Cross multiply
    64,209.16x = 88,615.26 × 36,986.17
  4. Step 4: Simplify right side
    64,209.16x = 3,277,539,070.95
  5. Step 5: Solve for x
    x = 3,277,539,070.95/64,209.16
  6. Step 6: Final answer
    x = 51,044.73

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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.