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Finding the Fourth Proportional to 15,772.40, 23,633.40 and 8,367.20

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Solution

The fourth proportional to 15,772.40, 23,633.40 and 8,367.20 is: 12,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,772.40 : 23,633.40 = 8,367.20 : x
  2. Step 2: Convert to fraction form
    15,772.40/23,633.40 = 8,367.20/x
  3. Step 3: Cross multiply
    15,772.40x = 23,633.40 × 8,367.20
  4. Step 4: Simplify right side
    15,772.40x = 197,745,384.48
  5. Step 5: Solve for x
    x = 197,745,384.48/15,772.40
  6. Step 6: Final answer
    x = 12,537.43

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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.