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Finding the Fourth Proportional to 6,964.32, 9,610.51 and 3,980.43

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Solution

The fourth proportional to 6,964.32, 9,610.51 and 3,980.43 is: 5,492.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,964.32 : 9,610.51 = 3,980.43 : x
  2. Step 2: Convert to fraction form
    6,964.32/9,610.51 = 3,980.43/x
  3. Step 3: Cross multiply
    6,964.32x = 9,610.51 × 3,980.43
  4. Step 4: Simplify right side
    6,964.32x = 38,253,962.32
  5. Step 5: Solve for x
    x = 38,253,962.32/6,964.32
  6. Step 6: Final answer
    x = 5,492.85

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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.