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Finding the Fourth Proportional to 16,445.80, 24,672.80 and 4,759.02

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Solution

The fourth proportional to 16,445.80, 24,672.80 and 4,759.02 is: 7,139.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,445.80 : 24,672.80 = 4,759.02 : x
  2. Step 2: Convert to fraction form
    16,445.80/24,672.80 = 4,759.02/x
  3. Step 3: Cross multiply
    16,445.80x = 24,672.80 × 4,759.02
  4. Step 4: Simplify right side
    16,445.80x = 117,418,348.66
  5. Step 5: Solve for x
    x = 117,418,348.66/16,445.80
  6. Step 6: Final answer
    x = 7,139.72

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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.