Home / 31,726.76-47,586.46-8,355.02

Finding the Fourth Proportional to 31,726.76, 47,586.46 and 8,355.02

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Solution

The fourth proportional to 31,726.76, 47,586.46 and 8,355.02 is: 12,531.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,726.76 : 47,586.46 = 8,355.02 : x
  2. Step 2: Convert to fraction form
    31,726.76/47,586.46 = 8,355.02/x
  3. Step 3: Cross multiply
    31,726.76x = 47,586.46 × 8,355.02
  4. Step 4: Simplify right side
    31,726.76x = 397,585,825.03
  5. Step 5: Solve for x
    x = 397,585,825.03/31,726.76
  6. Step 6: Final answer
    x = 12,531.56

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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.