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Finding the Fourth Proportional to 69,801.92, 96,316.80 and 41,518.88

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Solution

The fourth proportional to 69,801.92, 96,316.80 and 41,518.88 is: 57,290.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,801.92 : 96,316.80 = 41,518.88 : x
  2. Step 2: Convert to fraction form
    69,801.92/96,316.80 = 41,518.88/x
  3. Step 3: Cross multiply
    69,801.92x = 96,316.80 × 41,518.88
  4. Step 4: Simplify right side
    69,801.92x = 3,998,965,661.18
  5. Step 5: Solve for x
    x = 3,998,965,661.18/69,801.92
  6. Step 6: Final answer
    x = 57,290.20

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1.5x scale

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.