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Finding the Fourth Proportional to 8,726.74, 12,043.02 and 4,748.02

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Solution

The fourth proportional to 8,726.74, 12,043.02 and 4,748.02 is: 6,552.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.74 : 12,043.02 = 4,748.02 : x
  2. Step 2: Convert to fraction form
    8,726.74/12,043.02 = 4,748.02/x
  3. Step 3: Cross multiply
    8,726.74x = 12,043.02 × 4,748.02
  4. Step 4: Simplify right side
    8,726.74x = 57,180,499.82
  5. Step 5: Solve for x
    x = 57,180,499.82/8,726.74
  6. Step 6: Final answer
    x = 6,552.33

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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.