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Finding the Fourth Proportional to 48,708.60, 73,062.90 and 15,876.60

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Solution

The fourth proportional to 48,708.60, 73,062.90 and 15,876.60 is: 23,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,708.60 : 73,062.90 = 15,876.60 : x
  2. Step 2: Convert to fraction form
    48,708.60/73,062.90 = 15,876.60/x
  3. Step 3: Cross multiply
    48,708.60x = 73,062.90 × 15,876.60
  4. Step 4: Simplify right side
    48,708.60x = 1,159,990,438.14
  5. Step 5: Solve for x
    x = 1,159,990,438.14/48,708.60
  6. Step 6: Final answer
    x = 23,814.90

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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.