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Finding the Fourth Proportional to 48,806.80, 73,203.68 and 13,749.18

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Solution

The fourth proportional to 48,806.80, 73,203.68 and 13,749.18 is: 20,621.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,806.80 : 73,203.68 = 13,749.18 : x
  2. Step 2: Convert to fraction form
    48,806.80/73,203.68 = 13,749.18/x
  3. Step 3: Cross multiply
    48,806.80x = 73,203.68 × 13,749.18
  4. Step 4: Simplify right side
    48,806.80x = 1,006,490,572.98
  5. Step 5: Solve for x
    x = 1,006,490,572.98/48,806.80
  6. Step 6: Final answer
    x = 20,621.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.