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Finding the Fourth Proportional to 23,491.52, 35,243.76 and 7,920.08

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Solution

The fourth proportional to 23,491.52, 35,243.76 and 7,920.08 is: 11,882.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,491.52 : 35,243.76 = 7,920.08 : x
  2. Step 2: Convert to fraction form
    23,491.52/35,243.76 = 7,920.08/x
  3. Step 3: Cross multiply
    23,491.52x = 35,243.76 × 7,920.08
  4. Step 4: Simplify right side
    23,491.52x = 279,133,398.70
  5. Step 5: Solve for x
    x = 279,133,398.70/23,491.52
  6. Step 6: Final answer
    x = 11,882.30

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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.