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Finding the Fourth Proportional to 8,597.85, 11,865.07 and 5,611.92

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Solution

The fourth proportional to 8,597.85, 11,865.07 and 5,611.92 is: 7,744.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,597.85 : 11,865.07 = 5,611.92 : x
  2. Step 2: Convert to fraction form
    8,597.85/11,865.07 = 5,611.92/x
  3. Step 3: Cross multiply
    8,597.85x = 11,865.07 × 5,611.92
  4. Step 4: Simplify right side
    8,597.85x = 66,585,823.63
  5. Step 5: Solve for x
    x = 66,585,823.63/8,597.85
  6. Step 6: Final answer
    x = 7,744.47

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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.