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Finding the Fourth Proportional to 17,275.98, 25,779.20 and 15,414.30

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Solution

The fourth proportional to 17,275.98, 25,779.20 and 15,414.30 is: 23,001.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,275.98 : 25,779.20 = 15,414.30 : x
  2. Step 2: Convert to fraction form
    17,275.98/25,779.20 = 15,414.30/x
  3. Step 3: Cross multiply
    17,275.98x = 25,779.20 × 15,414.30
  4. Step 4: Simplify right side
    17,275.98x = 397,368,245.49
  5. Step 5: Solve for x
    x = 397,368,245.49/17,275.98
  6. Step 6: Final answer
    x = 23,001.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.