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Finding the Fourth Proportional to 15,695.62, 21,676.94 and 9,741.49

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Solution

The fourth proportional to 15,695.62, 21,676.94 and 9,741.49 is: 13,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,695.62 : 21,676.94 = 9,741.49 : x
  2. Step 2: Convert to fraction form
    15,695.62/21,676.94 = 9,741.49/x
  3. Step 3: Cross multiply
    15,695.62x = 21,676.94 × 9,741.49
  4. Step 4: Simplify right side
    15,695.62x = 211,165,694.24
  5. Step 5: Solve for x
    x = 211,165,694.24/15,695.62
  6. Step 6: Final answer
    x = 13,453.80

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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.