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Finding the Fourth Proportional to 69,008.40, 95,225.74 and 38,791.44

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Solution

The fourth proportional to 69,008.40, 95,225.74 and 38,791.44 is: 53,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,008.40 : 95,225.74 = 38,791.44 : x
  2. Step 2: Convert to fraction form
    69,008.40/95,225.74 = 38,791.44/x
  3. Step 3: Cross multiply
    69,008.40x = 95,225.74 × 38,791.44
  4. Step 4: Simplify right side
    69,008.40x = 3,693,943,579.67
  5. Step 5: Solve for x
    x = 3,693,943,579.67/69,008.40
  6. Step 6: Final answer
    x = 53,528.90

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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.