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Finding the Fourth Proportional to 15,442.40, 23,158.20 and 8,044.40

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Solution

The fourth proportional to 15,442.40, 23,158.20 and 8,044.40 is: 12,063.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442.40 : 23,158.20 = 8,044.40 : x
  2. Step 2: Convert to fraction form
    15,442.40/23,158.20 = 8,044.40/x
  3. Step 3: Cross multiply
    15,442.40x = 23,158.20 × 8,044.40
  4. Step 4: Simplify right side
    15,442.40x = 186,293,824.08
  5. Step 5: Solve for x
    x = 186,293,824.08/15,442.40
  6. Step 6: Final answer
    x = 12,063.79

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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.