Home / 41,128.75-61,693.13-13,426.75

Finding the Fourth Proportional to 41,128.75, 61,693.13 and 13,426.75

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Solution

The fourth proportional to 41,128.75, 61,693.13 and 13,426.75 is: 20,140.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,128.75 : 61,693.13 = 13,426.75 : x
  2. Step 2: Convert to fraction form
    41,128.75/61,693.13 = 13,426.75/x
  3. Step 3: Cross multiply
    41,128.75x = 61,693.13 × 13,426.75
  4. Step 4: Simplify right side
    41,128.75x = 828,338,233.23
  5. Step 5: Solve for x
    x = 828,338,233.23/41,128.75
  6. Step 6: Final answer
    x = 20,140.13

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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.