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Finding the Fourth Proportional to 69,673.91, 96,151.25 and 39,459.11

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Solution

The fourth proportional to 69,673.91, 96,151.25 and 39,459.11 is: 54,454.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,673.91 : 96,151.25 = 39,459.11 : x
  2. Step 2: Convert to fraction form
    69,673.91/96,151.25 = 39,459.11/x
  3. Step 3: Cross multiply
    69,673.91x = 96,151.25 × 39,459.11
  4. Step 4: Simplify right side
    69,673.91x = 3,794,042,368.28
  5. Step 5: Solve for x
    x = 3,794,042,368.28/69,673.91
  6. Step 6: Final answer
    x = 54,454.28

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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.