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Finding the Fourth Proportional to 29,422.43, 40,603.43 and 15,993.71

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Solution

The fourth proportional to 29,422.43, 40,603.43 and 15,993.71 is: 22,071.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,422.43 : 40,603.43 = 15,993.71 : x
  2. Step 2: Convert to fraction form
    29,422.43/40,603.43 = 15,993.71/x
  3. Step 3: Cross multiply
    29,422.43x = 40,603.43 × 15,993.71
  4. Step 4: Simplify right side
    29,422.43x = 649,399,484.43
  5. Step 5: Solve for x
    x = 649,399,484.43/29,422.43
  6. Step 6: Final answer
    x = 22,071.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.