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Finding the Fourth Proportional to 39,635.19, 59,452.79 and 21,167.19

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Solution

The fourth proportional to 39,635.19, 59,452.79 and 21,167.19 is: 31,750.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,635.19 : 59,452.79 = 21,167.19 : x
  2. Step 2: Convert to fraction form
    39,635.19/59,452.79 = 21,167.19/x
  3. Step 3: Cross multiply
    39,635.19x = 59,452.79 × 21,167.19
  4. Step 4: Simplify right side
    39,635.19x = 1,258,448,396.12
  5. Step 5: Solve for x
    x = 1,258,448,396.12/39,635.19
  6. Step 6: Final answer
    x = 31,750.79

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.