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Finding the Fourth Proportional to 8,577.32, 12,836.76 and 7,192.22

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Solution

The fourth proportional to 8,577.32, 12,836.76 and 7,192.22 is: 10,763.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,577.32 : 12,836.76 = 7,192.22 : x
  2. Step 2: Convert to fraction form
    8,577.32/12,836.76 = 7,192.22/x
  3. Step 3: Cross multiply
    8,577.32x = 12,836.76 × 7,192.22
  4. Step 4: Simplify right side
    8,577.32x = 92,324,802.01
  5. Step 5: Solve for x
    x = 92,324,802.01/8,577.32
  6. Step 6: Final answer
    x = 10,763.83

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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.