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Finding the Fourth Proportional to 7,766.75, 10,717.75 and 4,409.11

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Solution

The fourth proportional to 7,766.75, 10,717.75 and 4,409.11 is: 6,084.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.75 : 10,717.75 = 4,409.11 : x
  2. Step 2: Convert to fraction form
    7,766.75/10,717.75 = 4,409.11/x
  3. Step 3: Cross multiply
    7,766.75x = 10,717.75 × 4,409.11
  4. Step 4: Simplify right side
    7,766.75x = 47,255,766.03
  5. Step 5: Solve for x
    x = 47,255,766.03/7,766.75
  6. Step 6: Final answer
    x = 6,084.36

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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.