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Finding the Fourth Proportional to 8,726.60, 12,041.79 and 4,948.55

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Solution

The fourth proportional to 8,726.60, 12,041.79 and 4,948.55 is: 6,828.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,726.60 : 12,041.79 = 4,948.55 : x
  2. Step 2: Convert to fraction form
    8,726.60/12,041.79 = 4,948.55/x
  3. Step 3: Cross multiply
    8,726.60x = 12,041.79 × 4,948.55
  4. Step 4: Simplify right side
    8,726.60x = 59,589,405.27
  5. Step 5: Solve for x
    x = 59,589,405.27/8,726.60
  6. Step 6: Final answer
    x = 6,828.48

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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.