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Finding the Fourth Proportional to 69,719.59, 96,213.64 and 37,888.49

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Solution

The fourth proportional to 69,719.59, 96,213.64 and 37,888.49 is: 52,286.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,719.59 : 96,213.64 = 37,888.49 : x
  2. Step 2: Convert to fraction form
    69,719.59/96,213.64 = 37,888.49/x
  3. Step 3: Cross multiply
    69,719.59x = 96,213.64 × 37,888.49
  4. Step 4: Simplify right side
    69,719.59x = 3,645,389,872.26
  5. Step 5: Solve for x
    x = 3,645,389,872.26/69,719.59
  6. Step 6: Final answer
    x = 52,286.45

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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.