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Finding the Fourth Proportional to 48,482.40, 72,750.84 and 18,902.28

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Solution

The fourth proportional to 48,482.40, 72,750.84 and 18,902.28 is: 28,364.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,482.40 : 72,750.84 = 18,902.28 : x
  2. Step 2: Convert to fraction form
    48,482.40/72,750.84 = 18,902.28/x
  3. Step 3: Cross multiply
    48,482.40x = 72,750.84 × 18,902.28
  4. Step 4: Simplify right side
    48,482.40x = 1,375,156,747.92
  5. Step 5: Solve for x
    x = 1,375,156,747.92/48,482.40
  6. Step 6: Final answer
    x = 28,364.04

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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.