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Finding the Fourth Proportional to 48,530.98, 72,808.56 and 38,573.30

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Solution

The fourth proportional to 48,530.98, 72,808.56 and 38,573.30 is: 57,869.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,530.98 : 72,808.56 = 38,573.30 : x
  2. Step 2: Convert to fraction form
    48,530.98/72,808.56 = 38,573.30/x
  3. Step 3: Cross multiply
    48,530.98x = 72,808.56 × 38,573.30
  4. Step 4: Simplify right side
    48,530.98x = 2,808,466,234.58
  5. Step 5: Solve for x
    x = 2,808,466,234.58/48,530.98
  6. Step 6: Final answer
    x = 57,869.56

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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.