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Finding the Fourth Proportional to 8,726.91, 12,043.29 and 4,748.09

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Solution

The fourth proportional to 8,726.91, 12,043.29 and 4,748.09 is: 6,552.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.91 : 12,043.29 = 4,748.09 : x
  2. Step 2: Convert to fraction form
    8,726.91/12,043.29 = 4,748.09/x
  3. Step 3: Cross multiply
    8,726.91x = 12,043.29 × 4,748.09
  4. Step 4: Simplify right side
    8,726.91x = 57,182,564.60
  5. Step 5: Solve for x
    x = 57,182,564.60/8,726.91
  6. Step 6: Final answer
    x = 6,552.44

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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.