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Finding the Fourth Proportional to 69,803.28, 96,329.70 and 37,972.68

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Solution

The fourth proportional to 69,803.28, 96,329.70 and 37,972.68 is: 52,402.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,803.28 : 96,329.70 = 37,972.68 : x
  2. Step 2: Convert to fraction form
    69,803.28/96,329.70 = 37,972.68/x
  3. Step 3: Cross multiply
    69,803.28x = 96,329.70 × 37,972.68
  4. Step 4: Simplify right side
    69,803.28x = 3,657,896,872.60
  5. Step 5: Solve for x
    x = 3,657,896,872.60/69,803.28
  6. Step 6: Final answer
    x = 52,402.94

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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.