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Finding the Fourth Proportional to 60,990.22, 84,204.71 and 39,195.33

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Solution

The fourth proportional to 60,990.22, 84,204.71 and 39,195.33 is: 54,114.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,990.22 : 84,204.71 = 39,195.33 : x
  2. Step 2: Convert to fraction form
    60,990.22/84,204.71 = 39,195.33/x
  3. Step 3: Cross multiply
    60,990.22x = 84,204.71 × 39,195.33
  4. Step 4: Simplify right side
    60,990.22x = 3,300,431,515.80
  5. Step 5: Solve for x
    x = 3,300,431,515.80/60,990.22
  6. Step 6: Final answer
    x = 54,114.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.