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Finding the Fourth Proportional to 48,373.98, 72,588.99 and 20,291.53

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Solution

The fourth proportional to 48,373.98, 72,588.99 and 20,291.53 is: 30,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,373.98 : 72,588.99 = 20,291.53 : x
  2. Step 2: Convert to fraction form
    48,373.98/72,588.99 = 20,291.53/x
  3. Step 3: Cross multiply
    48,373.98x = 72,588.99 × 20,291.53
  4. Step 4: Simplify right side
    48,373.98x = 1,472,941,668.25
  5. Step 5: Solve for x
    x = 1,472,941,668.25/48,373.98
  6. Step 6: Final answer
    x = 30,449.05

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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.