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Finding the Fourth Proportional to 69,698.35, 96,177.75 and 38,654.60

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Solution

The fourth proportional to 69,698.35, 96,177.75 and 38,654.60 is: 53,340.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,698.35 : 96,177.75 = 38,654.60 : x
  2. Step 2: Convert to fraction form
    69,698.35/96,177.75 = 38,654.60/x
  3. Step 3: Cross multiply
    69,698.35x = 96,177.75 × 38,654.60
  4. Step 4: Simplify right side
    69,698.35x = 3,717,711,974.26
  5. Step 5: Solve for x
    x = 3,717,711,974.26/69,698.35
  6. Step 6: Final answer
    x = 53,340.03

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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.