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Finding the Fourth Proportional to 17,372.55, 26,043.03 and 9,042.78

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Solution

The fourth proportional to 17,372.55, 26,043.03 and 9,042.78 is: 13,555.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,372.55 : 26,043.03 = 9,042.78 : x
  2. Step 2: Convert to fraction form
    17,372.55/26,043.03 = 9,042.78/x
  3. Step 3: Cross multiply
    17,372.55x = 26,043.03 × 9,042.78
  4. Step 4: Simplify right side
    17,372.55x = 235,501,390.82
  5. Step 5: Solve for x
    x = 235,501,390.82/17,372.55
  6. Step 6: Final answer
    x = 13,555.95

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1.5x scale

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.