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Finding the Fourth Proportional to 8,560.46, 11,833.35 and 8,211.62

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Solution

The fourth proportional to 8,560.46, 11,833.35 and 8,211.62 is: 11,351.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.46 : 11,833.35 = 8,211.62 : x
  2. Step 2: Convert to fraction form
    8,560.46/11,833.35 = 8,211.62/x
  3. Step 3: Cross multiply
    8,560.46x = 11,833.35 × 8,211.62
  4. Step 4: Simplify right side
    8,560.46x = 97,170,973.53
  5. Step 5: Solve for x
    x = 97,170,973.53/8,560.46
  6. Step 6: Final answer
    x = 11,351.14

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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.