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Finding the Fourth Proportional to 5,750.40, 8,608.80 and 4,369.20

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Solution

The fourth proportional to 5,750.40, 8,608.80 and 4,369.20 is: 6,541.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,750.40 : 8,608.80 = 4,369.20 : x
  2. Step 2: Convert to fraction form
    5,750.40/8,608.80 = 4,369.20/x
  3. Step 3: Cross multiply
    5,750.40x = 8,608.80 × 4,369.20
  4. Step 4: Simplify right side
    5,750.40x = 37,613,568.96
  5. Step 5: Solve for x
    x = 37,613,568.96/5,750.40
  6. Step 6: Final answer
    x = 6,541.04

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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.