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Finding the Fourth Proportional to 48,295.20, 72,475.20 and 28,552.80

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Solution

The fourth proportional to 48,295.20, 72,475.20 and 28,552.80 is: 42,848.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,295.20 : 72,475.20 = 28,552.80 : x
  2. Step 2: Convert to fraction form
    48,295.20/72,475.20 = 28,552.80/x
  3. Step 3: Cross multiply
    48,295.20x = 72,475.20 × 28,552.80
  4. Step 4: Simplify right side
    48,295.20x = 2,069,369,890.56
  5. Step 5: Solve for x
    x = 2,069,369,890.56/48,295.20
  6. Step 6: Final answer
    x = 42,848.36

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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.