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Finding the Fourth Proportional to 40,121.19, 60,191.51 and 12,041.19

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Solution

The fourth proportional to 40,121.19, 60,191.51 and 12,041.19 is: 18,064.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,121.19 : 60,191.51 = 12,041.19 : x
  2. Step 2: Convert to fraction form
    40,121.19/60,191.51 = 12,041.19/x
  3. Step 3: Cross multiply
    40,121.19x = 60,191.51 × 12,041.19
  4. Step 4: Simplify right side
    40,121.19x = 724,777,348.09
  5. Step 5: Solve for x
    x = 724,777,348.09/40,121.19
  6. Step 6: Final answer
    x = 18,064.70

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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.