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Finding the Fourth Proportional to 12,726.13, 17,562.08 and 7,060.70

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Solution

The fourth proportional to 12,726.13, 17,562.08 and 7,060.70 is: 9,743.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.13 : 17,562.08 = 7,060.70 : x
  2. Step 2: Convert to fraction form
    12,726.13/17,562.08 = 7,060.70/x
  3. Step 3: Cross multiply
    12,726.13x = 17,562.08 × 7,060.70
  4. Step 4: Simplify right side
    12,726.13x = 124,000,578.26
  5. Step 5: Solve for x
    x = 124,000,578.26/12,726.13
  6. Step 6: Final answer
    x = 9,743.78

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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.