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Finding the Fourth Proportional to 17,690.98, 24,407.48 and 10,974.18

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Solution

The fourth proportional to 17,690.98, 24,407.48 and 10,974.18 is: 15,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,690.98 : 24,407.48 = 10,974.18 : x
  2. Step 2: Convert to fraction form
    17,690.98/24,407.48 = 10,974.18/x
  3. Step 3: Cross multiply
    17,690.98x = 24,407.48 × 10,974.18
  4. Step 4: Simplify right side
    17,690.98x = 267,852,078.87
  5. Step 5: Solve for x
    x = 267,852,078.87/17,690.98
  6. Step 6: Final answer
    x = 15,140.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.