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Finding the Fourth Proportional to 11,895.40, 17,823.90 and 10,244.20

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Solution

The fourth proportional to 11,895.40, 17,823.90 and 10,244.20 is: 15,349.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,895.40 : 17,823.90 = 10,244.20 : x
  2. Step 2: Convert to fraction form
    11,895.40/17,823.90 = 10,244.20/x
  3. Step 3: Cross multiply
    11,895.40x = 17,823.90 × 10,244.20
  4. Step 4: Simplify right side
    11,895.40x = 182,591,596.38
  5. Step 5: Solve for x
    x = 182,591,596.38/11,895.40
  6. Step 6: Final answer
    x = 15,349.77

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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.