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Finding the Fourth Proportional to 8,581.07, 11,902.48 and 8,353.46

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Solution

The fourth proportional to 8,581.07, 11,902.48 and 8,353.46 is: 11,586.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.07 : 11,902.48 = 8,353.46 : x
  2. Step 2: Convert to fraction form
    8,581.07/11,902.48 = 8,353.46/x
  3. Step 3: Cross multiply
    8,581.07x = 11,902.48 × 8,353.46
  4. Step 4: Simplify right side
    8,581.07x = 99,426,899.45
  5. Step 5: Solve for x
    x = 99,426,899.45/8,581.07
  6. Step 6: Final answer
    x = 11,586.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.