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Finding the Fourth Proportional to 65,679.60, 98,509.80 and 24,117.36

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Solution

The fourth proportional to 65,679.60, 98,509.80 and 24,117.36 is: 36,172.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,679.60 : 98,509.80 = 24,117.36 : x
  2. Step 2: Convert to fraction form
    65,679.60/98,509.80 = 24,117.36/x
  3. Step 3: Cross multiply
    65,679.60x = 98,509.80 × 24,117.36
  4. Step 4: Simplify right side
    65,679.60x = 2,375,796,310.13
  5. Step 5: Solve for x
    x = 2,375,796,310.13/65,679.60
  6. Step 6: Final answer
    x = 36,172.51

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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.