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Finding the Fourth Proportional to 6,175.70, 8,517.08 and 4,980.34

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Solution

The fourth proportional to 6,175.70, 8,517.08 and 4,980.34 is: 6,868.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,175.70 : 8,517.08 = 4,980.34 : x
  2. Step 2: Convert to fraction form
    6,175.70/8,517.08 = 4,980.34/x
  3. Step 3: Cross multiply
    6,175.70x = 8,517.08 × 4,980.34
  4. Step 4: Simplify right side
    6,175.70x = 42,418,001.26
  5. Step 5: Solve for x
    x = 42,418,001.26/6,175.70
  6. Step 6: Final answer
    x = 6,868.53

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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.