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Finding the Fourth Proportional to 8,726.56, 12,042.84 and 5,000.56

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Solution

The fourth proportional to 8,726.56, 12,042.84 and 5,000.56 is: 6,900.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.56 : 12,042.84 = 5,000.56 : x
  2. Step 2: Convert to fraction form
    8,726.56/12,042.84 = 5,000.56/x
  3. Step 3: Cross multiply
    8,726.56x = 12,042.84 × 5,000.56
  4. Step 4: Simplify right side
    8,726.56x = 60,220,943.99
  5. Step 5: Solve for x
    x = 60,220,943.99/8,726.56
  6. Step 6: Final answer
    x = 6,900.88

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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.