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Finding the Fourth Proportional to 5,586.60, 8,380.32 and 1,691.32

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Solution

The fourth proportional to 5,586.60, 8,380.32 and 1,691.32 is: 2,537.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,586.60 : 8,380.32 = 1,691.32 : x
  2. Step 2: Convert to fraction form
    5,586.60/8,380.32 = 1,691.32/x
  3. Step 3: Cross multiply
    5,586.60x = 8,380.32 × 1,691.32
  4. Step 4: Simplify right side
    5,586.60x = 14,173,802.82
  5. Step 5: Solve for x
    x = 14,173,802.82/5,586.60
  6. Step 6: Final answer
    x = 2,537.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.