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Finding the Fourth Proportional to 8,474.65, 12,710.62 and 2,317.21

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Solution

The fourth proportional to 8,474.65, 12,710.62 and 2,317.21 is: 3,475.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.65 : 12,710.62 = 2,317.21 : x
  2. Step 2: Convert to fraction form
    8,474.65/12,710.62 = 2,317.21/x
  3. Step 3: Cross multiply
    8,474.65x = 12,710.62 × 2,317.21
  4. Step 4: Simplify right side
    8,474.65x = 29,453,164.18
  5. Step 5: Solve for x
    x = 29,453,164.18/8,474.65
  6. Step 6: Final answer
    x = 3,475.44

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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.