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Finding the Fourth Proportional to 48,489.42, 72,734.21 and 15,212.10

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Solution

The fourth proportional to 48,489.42, 72,734.21 and 15,212.10 is: 22,818.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,489.42 : 72,734.21 = 15,212.10 : x
  2. Step 2: Convert to fraction form
    48,489.42/72,734.21 = 15,212.10/x
  3. Step 3: Cross multiply
    48,489.42x = 72,734.21 × 15,212.10
  4. Step 4: Simplify right side
    48,489.42x = 1,106,440,257.78
  5. Step 5: Solve for x
    x = 1,106,440,257.78/48,489.42
  6. Step 6: Final answer
    x = 22,818.18

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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.