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Finding the Fourth Proportional to 18,100.92, 24,969.24 and 11,384.10

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Solution

The fourth proportional to 18,100.92, 24,969.24 and 11,384.10 is: 15,703.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100.92 : 24,969.24 = 11,384.10 : x
  2. Step 2: Convert to fraction form
    18,100.92/24,969.24 = 11,384.10/x
  3. Step 3: Cross multiply
    18,100.92x = 24,969.24 × 11,384.10
  4. Step 4: Simplify right side
    18,100.92x = 284,252,325.08
  5. Step 5: Solve for x
    x = 284,252,325.08/18,100.92
  6. Step 6: Final answer
    x = 15,703.75

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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.