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Finding the Fourth Proportional to 69,751.48, 96,257.36 and 37,920.28

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Solution

The fourth proportional to 69,751.48, 96,257.36 and 37,920.28 is: 52,330.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,751.48 : 96,257.36 = 37,920.28 : x
  2. Step 2: Convert to fraction form
    69,751.48/96,257.36 = 37,920.28/x
  3. Step 3: Cross multiply
    69,751.48x = 96,257.36 × 37,920.28
  4. Step 4: Simplify right side
    69,751.48x = 3,650,106,043.26
  5. Step 5: Solve for x
    x = 3,650,106,043.26/69,751.48
  6. Step 6: Final answer
    x = 52,330.16

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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.