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Finding the Fourth Proportional to 64,580.32, 96,690.03 and 34,891.78

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Solution

The fourth proportional to 64,580.32, 96,690.03 and 34,891.78 is: 52,240.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,580.32 : 96,690.03 = 34,891.78 : x
  2. Step 2: Convert to fraction form
    64,580.32/96,690.03 = 34,891.78/x
  3. Step 3: Cross multiply
    64,580.32x = 96,690.03 × 34,891.78
  4. Step 4: Simplify right side
    64,580.32x = 3,373,687,254.95
  5. Step 5: Solve for x
    x = 3,373,687,254.95/64,580.32
  6. Step 6: Final answer
    x = 52,240.18

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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.