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Finding the Fourth Proportional to 66,398.43, 99,627.10 and 34,800.99

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Solution

The fourth proportional to 66,398.43, 99,627.10 and 34,800.99 is: 52,216.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,398.43 : 99,627.10 = 34,800.99 : x
  2. Step 2: Convert to fraction form
    66,398.43/99,627.10 = 34,800.99/x
  3. Step 3: Cross multiply
    66,398.43x = 99,627.10 × 34,800.99
  4. Step 4: Simplify right side
    66,398.43x = 3,467,121,710.83
  5. Step 5: Solve for x
    x = 3,467,121,710.83/66,398.43
  6. Step 6: Final answer
    x = 52,216.92

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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.