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Finding the Fourth Proportional to 8,726.99, 12,043.39 and 4,748.11

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Solution

The fourth proportional to 8,726.99, 12,043.39 and 4,748.11 is: 6,552.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.99 : 12,043.39 = 4,748.11 : x
  2. Step 2: Convert to fraction form
    8,726.99/12,043.39 = 4,748.11/x
  3. Step 3: Cross multiply
    8,726.99x = 12,043.39 × 4,748.11
  4. Step 4: Simplify right side
    8,726.99x = 57,183,280.28
  5. Step 5: Solve for x
    x = 57,183,280.28/8,726.99
  6. Step 6: Final answer
    x = 6,552.46

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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.