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Finding the Fourth Proportional to 15,597.64, 21,524.62 and 8,791.04

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Solution

The fourth proportional to 15,597.64, 21,524.62 and 8,791.04 is: 12,131.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,597.64 : 21,524.62 = 8,791.04 : x
  2. Step 2: Convert to fraction form
    15,597.64/21,524.62 = 8,791.04/x
  3. Step 3: Cross multiply
    15,597.64x = 21,524.62 × 8,791.04
  4. Step 4: Simplify right side
    15,597.64x = 189,223,795.40
  5. Step 5: Solve for x
    x = 189,223,795.40/15,597.64
  6. Step 6: Final answer
    x = 12,131.57

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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.