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Finding the Fourth Proportional to 12,544.75, 17,311.80 and 6,955.75

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Solution

The fourth proportional to 12,544.75, 17,311.80 and 6,955.75 is: 9,598.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,544.75 : 17,311.80 = 6,955.75 : x
  2. Step 2: Convert to fraction form
    12,544.75/17,311.80 = 6,955.75/x
  3. Step 3: Cross multiply
    12,544.75x = 17,311.80 × 6,955.75
  4. Step 4: Simplify right side
    12,544.75x = 120,416,552.85
  5. Step 5: Solve for x
    x = 120,416,552.85/12,544.75
  6. Step 6: Final answer
    x = 9,598.96

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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.