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Finding the Fourth Proportional to 5,321.65, 7,343.99 and 3,084.25

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Solution

The fourth proportional to 5,321.65, 7,343.99 and 3,084.25 is: 4,256.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.65 : 7,343.99 = 3,084.25 : x
  2. Step 2: Convert to fraction form
    5,321.65/7,343.99 = 3,084.25/x
  3. Step 3: Cross multiply
    5,321.65x = 7,343.99 × 3,084.25
  4. Step 4: Simplify right side
    5,321.65x = 22,650,701.16
  5. Step 5: Solve for x
    x = 22,650,701.16/5,321.65
  6. Step 6: Final answer
    x = 4,256.33

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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.