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Finding the Fourth Proportional to 69,838.36, 96,489.69 and 48,711.94

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Solution

The fourth proportional to 69,838.36, 96,489.69 and 48,711.94 is: 67,301.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,838.36 : 96,489.69 = 48,711.94 : x
  2. Step 2: Convert to fraction form
    69,838.36/96,489.69 = 48,711.94/x
  3. Step 3: Cross multiply
    69,838.36x = 96,489.69 × 48,711.94
  4. Step 4: Simplify right side
    69,838.36x = 4,700,199,989.90
  5. Step 5: Solve for x
    x = 4,700,199,989.90/69,838.36
  6. Step 6: Final answer
    x = 67,301.12

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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.