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Finding the Fourth Proportional to 39,881.99, 59,793.30 and 17,388.42

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Solution

The fourth proportional to 39,881.99, 59,793.30 and 17,388.42 is: 26,069.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,881.99 : 59,793.30 = 17,388.42 : x
  2. Step 2: Convert to fraction form
    39,881.99/59,793.30 = 17,388.42/x
  3. Step 3: Cross multiply
    39,881.99x = 59,793.30 × 17,388.42
  4. Step 4: Simplify right side
    39,881.99x = 1,039,711,013.59
  5. Step 5: Solve for x
    x = 1,039,711,013.59/39,881.99
  6. Step 6: Final answer
    x = 26,069.69

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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.