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Finding the Fourth Proportional to 71,633.44, 98,854.24 and 39,801.60

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Solution

The fourth proportional to 71,633.44, 98,854.24 and 39,801.60 is: 54,926.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,633.44 : 98,854.24 = 39,801.60 : x
  2. Step 2: Convert to fraction form
    71,633.44/98,854.24 = 39,801.60/x
  3. Step 3: Cross multiply
    71,633.44x = 98,854.24 × 39,801.60
  4. Step 4: Simplify right side
    71,633.44x = 3,934,556,918.78
  5. Step 5: Solve for x
    x = 3,934,556,918.78/71,633.44
  6. Step 6: Final answer
    x = 54,926.26

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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.