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Finding the Fourth Proportional to 48,651.82, 72,988.66 and 15,373.88

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Solution

The fourth proportional to 48,651.82, 72,988.66 and 15,373.88 is: 23,064.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,651.82 : 72,988.66 = 15,373.88 : x
  2. Step 2: Convert to fraction form
    48,651.82/72,988.66 = 15,373.88/x
  3. Step 3: Cross multiply
    48,651.82x = 72,988.66 × 15,373.88
  4. Step 4: Simplify right side
    48,651.82x = 1,122,118,900.20
  5. Step 5: Solve for x
    x = 1,122,118,900.20/48,651.82
  6. Step 6: Final answer
    x = 23,064.27

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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.