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Finding the Fourth Proportional to 26,807.88, 40,231.26 and 15,143.88

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Solution

The fourth proportional to 26,807.88, 40,231.26 and 15,143.88 is: 22,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,807.88 : 40,231.26 = 15,143.88 : x
  2. Step 2: Convert to fraction form
    26,807.88/40,231.26 = 15,143.88/x
  3. Step 3: Cross multiply
    26,807.88x = 40,231.26 × 15,143.88
  4. Step 4: Simplify right side
    26,807.88x = 609,257,373.69
  5. Step 5: Solve for x
    x = 609,257,373.69/26,807.88
  6. Step 6: Final answer
    x = 22,726.80

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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.