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Finding the Fourth Proportional to 48,908.86, 73,335.74 and 15,621.10

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Solution

The fourth proportional to 48,908.86, 73,335.74 and 15,621.10 is: 23,422.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,908.86 : 73,335.74 = 15,621.10 : x
  2. Step 2: Convert to fraction form
    48,908.86/73,335.74 = 15,621.10/x
  3. Step 3: Cross multiply
    48,908.86x = 73,335.74 × 15,621.10
  4. Step 4: Simplify right side
    48,908.86x = 1,145,584,928.11
  5. Step 5: Solve for x
    x = 1,145,584,928.11/48,908.86
  6. Step 6: Final answer
    x = 23,422.85

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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.