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Finding the Fourth Proportional to 18,691, 25,794.06 and 10,734.64

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Solution

The fourth proportional to 18,691, 25,794.06 and 10,734.64 is: 14,814.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,691 : 25,794.06 = 10,734.64 : x
  2. Step 2: Convert to fraction form
    18,691/25,794.06 = 10,734.64/x
  3. Step 3: Cross multiply
    18,691x = 25,794.06 × 10,734.64
  4. Step 4: Simplify right side
    18,691x = 276,889,948.24
  5. Step 5: Solve for x
    x = 276,889,948.24/18,691
  6. Step 6: Final answer
    x = 14,814.08

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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.