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Finding the Fourth Proportional to 5,671.90, 8,452.91 and 5,376.65

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Solution

The fourth proportional to 5,671.90, 8,452.91 and 5,376.65 is: 8,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.90 : 8,452.91 = 5,376.65 : x
  2. Step 2: Convert to fraction form
    5,671.90/8,452.91 = 5,376.65/x
  3. Step 3: Cross multiply
    5,671.90x = 8,452.91 × 5,376.65
  4. Step 4: Simplify right side
    5,671.90x = 45,448,350.81
  5. Step 5: Solve for x
    x = 45,448,350.81/5,671.90
  6. Step 6: Final answer
    x = 8,012.90

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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.