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Finding the Fourth Proportional to 18,084.30, 24,960.82 and 10,916.40

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Solution

The fourth proportional to 18,084.30, 24,960.82 and 10,916.40 is: 15,067.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,084.30 : 24,960.82 = 10,916.40 : x
  2. Step 2: Convert to fraction form
    18,084.30/24,960.82 = 10,916.40/x
  3. Step 3: Cross multiply
    18,084.30x = 24,960.82 × 10,916.40
  4. Step 4: Simplify right side
    18,084.30x = 272,482,295.45
  5. Step 5: Solve for x
    x = 272,482,295.45/18,084.30
  6. Step 6: Final answer
    x = 15,067.34

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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.