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Finding the Fourth Proportional to 22,363.29, 30,861.58 and 12,154.32

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Solution

The fourth proportional to 22,363.29, 30,861.58 and 12,154.32 is: 16,773.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,363.29 : 30,861.58 = 12,154.32 : x
  2. Step 2: Convert to fraction form
    22,363.29/30,861.58 = 12,154.32/x
  3. Step 3: Cross multiply
    22,363.29x = 30,861.58 × 12,154.32
  4. Step 4: Simplify right side
    22,363.29x = 375,101,488.64
  5. Step 5: Solve for x
    x = 375,101,488.64/22,363.29
  6. Step 6: Final answer
    x = 16,773.09

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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.