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Finding the Fourth Proportional to 23,660.80, 35,491.20 and 23,315.20

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Solution

The fourth proportional to 23,660.80, 35,491.20 and 23,315.20 is: 34,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,660.80 : 35,491.20 = 23,315.20 : x
  2. Step 2: Convert to fraction form
    23,660.80/35,491.20 = 23,315.20/x
  3. Step 3: Cross multiply
    23,660.80x = 35,491.20 × 23,315.20
  4. Step 4: Simplify right side
    23,660.80x = 827,484,426.24
  5. Step 5: Solve for x
    x = 827,484,426.24/23,660.80
  6. Step 6: Final answer
    x = 34,972.80

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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.