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Finding the Fourth Proportional to 18,442.56, 25,450.40 and 10,059.04

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Solution

The fourth proportional to 18,442.56, 25,450.40 and 10,059.04 is: 13,881.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442.56 : 25,450.40 = 10,059.04 : x
  2. Step 2: Convert to fraction form
    18,442.56/25,450.40 = 10,059.04/x
  3. Step 3: Cross multiply
    18,442.56x = 25,450.40 × 10,059.04
  4. Step 4: Simplify right side
    18,442.56x = 256,006,591.62
  5. Step 5: Solve for x
    x = 256,006,591.62/18,442.56
  6. Step 6: Final answer
    x = 13,881.29

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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.