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Finding the Fourth Proportional to 39,575.40, 59,348.70 and 19,847.40

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Solution

The fourth proportional to 39,575.40, 59,348.70 and 19,847.40 is: 29,763.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,575.40 : 59,348.70 = 19,847.40 : x
  2. Step 2: Convert to fraction form
    39,575.40/59,348.70 = 19,847.40/x
  3. Step 3: Cross multiply
    39,575.40x = 59,348.70 × 19,847.40
  4. Step 4: Simplify right side
    39,575.40x = 1,177,917,388.38
  5. Step 5: Solve for x
    x = 1,177,917,388.38/39,575.40
  6. Step 6: Final answer
    x = 29,763.88

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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.