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Finding the Fourth Proportional to 22,911.96, 34,381.08 and 12,382.08

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Solution

The fourth proportional to 22,911.96, 34,381.08 and 12,382.08 is: 18,580.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,911.96 : 34,381.08 = 12,382.08 : x
  2. Step 2: Convert to fraction form
    22,911.96/34,381.08 = 12,382.08/x
  3. Step 3: Cross multiply
    22,911.96x = 34,381.08 × 12,382.08
  4. Step 4: Simplify right side
    22,911.96x = 425,709,283.05
  5. Step 5: Solve for x
    x = 425,709,283.05/22,911.96
  6. Step 6: Final answer
    x = 18,580.22

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1.5x scale

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.