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Finding the Fourth Proportional to 6,938.64, 9,575.52 and 3,794.88

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Solution

The fourth proportional to 6,938.64, 9,575.52 and 3,794.88 is: 5,237.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.64 : 9,575.52 = 3,794.88 : x
  2. Step 2: Convert to fraction form
    6,938.64/9,575.52 = 3,794.88/x
  3. Step 3: Cross multiply
    6,938.64x = 9,575.52 × 3,794.88
  4. Step 4: Simplify right side
    6,938.64x = 36,337,949.34
  5. Step 5: Solve for x
    x = 36,337,949.34/6,938.64
  6. Step 6: Final answer
    x = 5,237.04

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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.