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Finding the Fourth Proportional to 63,121.79, 87,108.01 and 34,827.48

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Solution

The fourth proportional to 63,121.79, 87,108.01 and 34,827.48 is: 48,061.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,121.79 : 87,108.01 = 34,827.48 : x
  2. Step 2: Convert to fraction form
    63,121.79/87,108.01 = 34,827.48/x
  3. Step 3: Cross multiply
    63,121.79x = 87,108.01 × 34,827.48
  4. Step 4: Simplify right side
    63,121.79x = 3,033,752,389.05
  5. Step 5: Solve for x
    x = 3,033,752,389.05/63,121.79
  6. Step 6: Final answer
    x = 48,061.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.