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Finding the Fourth Proportional to 5,890.32, 8,793.30 and 5,685.12

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Solution

The fourth proportional to 5,890.32, 8,793.30 and 5,685.12 is: 8,486.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890.32 : 8,793.30 = 5,685.12 : x
  2. Step 2: Convert to fraction form
    5,890.32/8,793.30 = 5,685.12/x
  3. Step 3: Cross multiply
    5,890.32x = 8,793.30 × 5,685.12
  4. Step 4: Simplify right side
    5,890.32x = 49,990,965.70
  5. Step 5: Solve for x
    x = 49,990,965.70/5,890.32
  6. Step 6: Final answer
    x = 8,486.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.