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Finding the Fourth Proportional to 16,691.58, 25,057.08 and 6,838.74

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Solution

The fourth proportional to 16,691.58, 25,057.08 and 6,838.74 is: 10,266.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,691.58 : 25,057.08 = 6,838.74 : x
  2. Step 2: Convert to fraction form
    16,691.58/25,057.08 = 6,838.74/x
  3. Step 3: Cross multiply
    16,691.58x = 25,057.08 × 6,838.74
  4. Step 4: Simplify right side
    16,691.58x = 171,358,855.28
  5. Step 5: Solve for x
    x = 171,358,855.28/16,691.58
  6. Step 6: Final answer
    x = 10,266.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.