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Finding the Fourth Proportional to 44,645.60, 66,978.30 and 15,062.78

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Solution

The fourth proportional to 44,645.60, 66,978.30 and 15,062.78 is: 22,597.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,645.60 : 66,978.30 = 15,062.78 : x
  2. Step 2: Convert to fraction form
    44,645.60/66,978.30 = 15,062.78/x
  3. Step 3: Cross multiply
    44,645.60x = 66,978.30 × 15,062.78
  4. Step 4: Simplify right side
    44,645.60x = 1,008,879,244.85
  5. Step 5: Solve for x
    x = 1,008,879,244.85/44,645.60
  6. Step 6: Final answer
    x = 22,597.51

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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.