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Finding the Fourth Proportional to 40,122.51, 60,191.87 and 27,648.51

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Solution

The fourth proportional to 40,122.51, 60,191.87 and 27,648.51 is: 41,478.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,122.51 : 60,191.87 = 27,648.51 : x
  2. Step 2: Convert to fraction form
    40,122.51/60,191.87 = 27,648.51/x
  3. Step 3: Cross multiply
    40,122.51x = 60,191.87 × 27,648.51
  4. Step 4: Simplify right side
    40,122.51x = 1,664,215,519.61
  5. Step 5: Solve for x
    x = 1,664,215,519.61/40,122.51
  6. Step 6: Final answer
    x = 41,478.35

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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.