Home / 40,962.20-61,443.32-11,380.05

Finding the Fourth Proportional to 40,962.20, 61,443.32 and 11,380.05

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Solution

The fourth proportional to 40,962.20, 61,443.32 and 11,380.05 is: 17,070.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,962.20 : 61,443.32 = 11,380.05 : x
  2. Step 2: Convert to fraction form
    40,962.20/61,443.32 = 11,380.05/x
  3. Step 3: Cross multiply
    40,962.20x = 61,443.32 × 11,380.05
  4. Step 4: Simplify right side
    40,962.20x = 699,227,996.87
  5. Step 5: Solve for x
    x = 699,227,996.87/40,962.20
  6. Step 6: Final answer
    x = 17,070.08

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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.