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Finding the Fourth Proportional to 9,605.88, 13,256.12 and 5,189.88

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Solution

The fourth proportional to 9,605.88, 13,256.12 and 5,189.88 is: 7,162.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,605.88 : 13,256.12 = 5,189.88 : x
  2. Step 2: Convert to fraction form
    9,605.88/13,256.12 = 5,189.88/x
  3. Step 3: Cross multiply
    9,605.88x = 13,256.12 × 5,189.88
  4. Step 4: Simplify right side
    9,605.88x = 68,797,672.07
  5. Step 5: Solve for x
    x = 68,797,672.07/9,605.88
  6. Step 6: Final answer
    x = 7,162.04

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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.