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Finding the Fourth Proportional to 69,719.63, 96,213.70 and 37,888.53

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Solution

The fourth proportional to 69,719.63, 96,213.70 and 37,888.53 is: 52,286.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,719.63 : 96,213.70 = 37,888.53 : x
  2. Step 2: Convert to fraction form
    69,719.63/96,213.70 = 37,888.53/x
  3. Step 3: Cross multiply
    69,719.63x = 96,213.70 × 37,888.53
  4. Step 4: Simplify right side
    69,719.63x = 3,645,395,083.07
  5. Step 5: Solve for x
    x = 3,645,395,083.07/69,719.63
  6. Step 6: Final answer
    x = 52,286.50

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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.