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Finding the Fourth Proportional to 12,568.70, 17,465.09 and 12,432.02

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Solution

The fourth proportional to 12,568.70, 17,465.09 and 12,432.02 is: 17,275.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568.70 : 17,465.09 = 12,432.02 : x
  2. Step 2: Convert to fraction form
    12,568.70/17,465.09 = 12,432.02/x
  3. Step 3: Cross multiply
    12,568.70x = 17,465.09 × 12,432.02
  4. Step 4: Simplify right side
    12,568.70x = 217,126,198.70
  5. Step 5: Solve for x
    x = 217,126,198.70/12,568.70
  6. Step 6: Final answer
    x = 17,275.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.