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Finding the Fourth Proportional to 69,658.79, 96,128.28 and 37,827.90

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Solution

The fourth proportional to 69,658.79, 96,128.28 and 37,827.90 is: 52,202.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,658.79 : 96,128.28 = 37,827.90 : x
  2. Step 2: Convert to fraction form
    69,658.79/96,128.28 = 37,827.90/x
  3. Step 3: Cross multiply
    69,658.79x = 96,128.28 × 37,827.90
  4. Step 4: Simplify right side
    69,658.79x = 3,636,330,963.01
  5. Step 5: Solve for x
    x = 3,636,330,963.01/69,658.79
  6. Step 6: Final answer
    x = 52,202.04

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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.