Home / 10,422.76-15,632.70-2,631.10

Finding the Fourth Proportional to 10,422.76, 15,632.70 and 2,631.10

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Solution

The fourth proportional to 10,422.76, 15,632.70 and 2,631.10 is: 3,946.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.76 : 15,632.70 = 2,631.10 : x
  2. Step 2: Convert to fraction form
    10,422.76/15,632.70 = 2,631.10/x
  3. Step 3: Cross multiply
    10,422.76x = 15,632.70 × 2,631.10
  4. Step 4: Simplify right side
    10,422.76x = 41,131,196.97
  5. Step 5: Solve for x
    x = 41,131,196.97/10,422.76
  6. Step 6: Final answer
    x = 3,946.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.