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Finding the Fourth Proportional to 22,465.44, 31,002.44 and 12,393.72

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Solution

The fourth proportional to 22,465.44, 31,002.44 and 12,393.72 is: 17,103.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,465.44 : 31,002.44 = 12,393.72 : x
  2. Step 2: Convert to fraction form
    22,465.44/31,002.44 = 12,393.72/x
  3. Step 3: Cross multiply
    22,465.44x = 31,002.44 × 12,393.72
  4. Step 4: Simplify right side
    22,465.44x = 384,235,560.68
  5. Step 5: Solve for x
    x = 384,235,560.68/22,465.44
  6. Step 6: Final answer
    x = 17,103.41

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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.