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Finding the Fourth Proportional to 8,706.42, 13,059.57 and 3,512.22

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Solution

The fourth proportional to 8,706.42, 13,059.57 and 3,512.22 is: 5,268.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.42 : 13,059.57 = 3,512.22 : x
  2. Step 2: Convert to fraction form
    8,706.42/13,059.57 = 3,512.22/x
  3. Step 3: Cross multiply
    8,706.42x = 13,059.57 × 3,512.22
  4. Step 4: Simplify right side
    8,706.42x = 45,868,082.95
  5. Step 5: Solve for x
    x = 45,868,082.95/8,706.42
  6. Step 6: Final answer
    x = 5,268.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.