Home / 41,057.40-61,580.79-12,980.28

Finding the Fourth Proportional to 41,057.40, 61,580.79 and 12,980.28

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Solution

The fourth proportional to 41,057.40, 61,580.79 and 12,980.28 is: 19,468.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,057.40 : 61,580.79 = 12,980.28 : x
  2. Step 2: Convert to fraction form
    41,057.40/61,580.79 = 12,980.28/x
  3. Step 3: Cross multiply
    41,057.40x = 61,580.79 × 12,980.28
  4. Step 4: Simplify right side
    41,057.40x = 799,335,896.82
  5. Step 5: Solve for x
    x = 799,335,896.82/41,057.40
  6. Step 6: Final answer
    x = 19,468.74

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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.