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Finding the Fourth Proportional to 40,047.62, 60,065.12 and 13,393.41

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Solution

The fourth proportional to 40,047.62, 60,065.12 and 13,393.41 is: 20,088.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,047.62 : 60,065.12 = 13,393.41 : x
  2. Step 2: Convert to fraction form
    40,047.62/60,065.12 = 13,393.41/x
  3. Step 3: Cross multiply
    40,047.62x = 60,065.12 × 13,393.41
  4. Step 4: Simplify right side
    40,047.62x = 804,476,778.86
  5. Step 5: Solve for x
    x = 804,476,778.86/40,047.62
  6. Step 6: Final answer
    x = 20,088.00

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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.