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Finding the Fourth Proportional to 69,522.29, 95,945.67 and 39,307.90

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Solution

The fourth proportional to 69,522.29, 95,945.67 and 39,307.90 is: 54,247.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,522.29 : 95,945.67 = 39,307.90 : x
  2. Step 2: Convert to fraction form
    69,522.29/95,945.67 = 39,307.90/x
  3. Step 3: Cross multiply
    69,522.29x = 95,945.67 × 39,307.90
  4. Step 4: Simplify right side
    69,522.29x = 3,771,422,801.79
  5. Step 5: Solve for x
    x = 3,771,422,801.79/69,522.29
  6. Step 6: Final answer
    x = 54,247.68

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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.