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Finding the Fourth Proportional to 8,562.11, 11,813.45 and 5,204.05

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Solution

The fourth proportional to 8,562.11, 11,813.45 and 5,204.05 is: 7,180.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,562.11 : 11,813.45 = 5,204.05 : x
  2. Step 2: Convert to fraction form
    8,562.11/11,813.45 = 5,204.05/x
  3. Step 3: Cross multiply
    8,562.11x = 11,813.45 × 5,204.05
  4. Step 4: Simplify right side
    8,562.11x = 61,477,728.92
  5. Step 5: Solve for x
    x = 61,477,728.92/8,562.11
  6. Step 6: Final answer
    x = 7,180.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.