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Finding the Fourth Proportional to 8,528.62, 11,770.03 and 5,694.20

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Solution

The fourth proportional to 8,528.62, 11,770.03 and 5,694.20 is: 7,858.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.62 : 11,770.03 = 5,694.20 : x
  2. Step 2: Convert to fraction form
    8,528.62/11,770.03 = 5,694.20/x
  3. Step 3: Cross multiply
    8,528.62x = 11,770.03 × 5,694.20
  4. Step 4: Simplify right side
    8,528.62x = 67,020,904.83
  5. Step 5: Solve for x
    x = 67,020,904.83/8,528.62
  6. Step 6: Final answer
    x = 7,858.35

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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.