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Finding the Fourth Proportional to 15,566.26, 21,480.69 and 8,492.26

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Solution

The fourth proportional to 15,566.26, 21,480.69 and 8,492.26 is: 11,718.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,566.26 : 21,480.69 = 8,492.26 : x
  2. Step 2: Convert to fraction form
    15,566.26/21,480.69 = 8,492.26/x
  3. Step 3: Cross multiply
    15,566.26x = 21,480.69 × 8,492.26
  4. Step 4: Simplify right side
    15,566.26x = 182,419,604.46
  5. Step 5: Solve for x
    x = 182,419,604.46/15,566.26
  6. Step 6: Final answer
    x = 11,718.91

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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.