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Finding the Fourth Proportional to 60,989.84, 84,204.19 and 39,194.96

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Solution

The fourth proportional to 60,989.84, 84,204.19 and 39,194.96 is: 54,113.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,989.84 : 84,204.19 = 39,194.96 : x
  2. Step 2: Convert to fraction form
    60,989.84/84,204.19 = 39,194.96/x
  3. Step 3: Cross multiply
    60,989.84x = 84,204.19 × 39,194.96
  4. Step 4: Simplify right side
    60,989.84x = 3,300,379,499.12
  5. Step 5: Solve for x
    x = 3,300,379,499.12/60,989.84
  6. Step 6: Final answer
    x = 54,113.59

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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.