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Finding the Fourth Proportional to 48,451.68, 72,662.16 and 15,612

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Solution

The fourth proportional to 48,451.68, 72,662.16 and 15,612 is: 23,413.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,451.68 : 72,662.16 = 15,612 : x
  2. Step 2: Convert to fraction form
    48,451.68/72,662.16 = 15,612/x
  3. Step 3: Cross multiply
    48,451.68x = 72,662.16 × 15,612
  4. Step 4: Simplify right side
    48,451.68x = 1,134,401,641.92
  5. Step 5: Solve for x
    x = 1,134,401,641.92/48,451.68
  6. Step 6: Final answer
    x = 23,413.05

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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.