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Finding the Fourth Proportional to 22,372.92, 30,881.07 and 14,920.92

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Solution

The fourth proportional to 22,372.92, 30,881.07 and 14,920.92 is: 20,595.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,372.92 : 30,881.07 = 14,920.92 : x
  2. Step 2: Convert to fraction form
    22,372.92/30,881.07 = 14,920.92/x
  3. Step 3: Cross multiply
    22,372.92x = 30,881.07 × 14,920.92
  4. Step 4: Simplify right side
    22,372.92x = 460,773,974.98
  5. Step 5: Solve for x
    x = 460,773,974.98/22,372.92
  6. Step 6: Final answer
    x = 20,595.16

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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.