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Finding the Fourth Proportional to 48,603.65, 72,904.46 and 13,542.39

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Solution

The fourth proportional to 48,603.65, 72,904.46 and 13,542.39 is: 20,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,603.65 : 72,904.46 = 13,542.39 : x
  2. Step 2: Convert to fraction form
    48,603.65/72,904.46 = 13,542.39/x
  3. Step 3: Cross multiply
    48,603.65x = 72,904.46 × 13,542.39
  4. Step 4: Simplify right side
    48,603.65x = 987,300,562.35
  5. Step 5: Solve for x
    x = 987,300,562.35/48,603.65
  6. Step 6: Final answer
    x = 20,313.30

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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.