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Finding the Fourth Proportional to 15,472.11, 23,214.70 and 7,581.60

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Solution

The fourth proportional to 15,472.11, 23,214.70 and 7,581.60 is: 11,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,472.11 : 23,214.70 = 7,581.60 : x
  2. Step 2: Convert to fraction form
    15,472.11/23,214.70 = 7,581.60/x
  3. Step 3: Cross multiply
    15,472.11x = 23,214.70 × 7,581.60
  4. Step 4: Simplify right side
    15,472.11x = 176,004,579.00
  5. Step 5: Solve for x
    x = 176,004,579.00/15,472.11
  6. Step 6: Final answer
    x = 11,375.60

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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.