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Finding the Fourth Proportional to 8,562.13, 12,822.22 and 7,072.23

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Solution

The fourth proportional to 8,562.13, 12,822.22 and 7,072.23 is: 10,591.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,562.13 : 12,822.22 = 7,072.23 : x
  2. Step 2: Convert to fraction form
    8,562.13/12,822.22 = 7,072.23/x
  3. Step 3: Cross multiply
    8,562.13x = 12,822.22 × 7,072.23
  4. Step 4: Simplify right side
    8,562.13x = 90,681,688.95
  5. Step 5: Solve for x
    x = 90,681,688.95/8,562.13
  6. Step 6: Final answer
    x = 10,591.02

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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.