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Finding the Fourth Proportional to 69,952.58, 96,531.74 and 38,120.79

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Solution

The fourth proportional to 69,952.58, 96,531.74 and 38,120.79 is: 52,605.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,952.58 : 96,531.74 = 38,120.79 : x
  2. Step 2: Convert to fraction form
    69,952.58/96,531.74 = 38,120.79/x
  3. Step 3: Cross multiply
    69,952.58x = 96,531.74 × 38,120.79
  4. Step 4: Simplify right side
    69,952.58x = 3,679,866,525.51
  5. Step 5: Solve for x
    x = 3,679,866,525.51/69,952.58
  6. Step 6: Final answer
    x = 52,605.16

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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.