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Finding the Fourth Proportional to 6,685.77, 9,226.89 and 3,701.89

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Solution

The fourth proportional to 6,685.77, 9,226.89 and 3,701.89 is: 5,108.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,685.77 : 9,226.89 = 3,701.89 : x
  2. Step 2: Convert to fraction form
    6,685.77/9,226.89 = 3,701.89/x
  3. Step 3: Cross multiply
    6,685.77x = 9,226.89 × 3,701.89
  4. Step 4: Simplify right side
    6,685.77x = 34,156,881.04
  5. Step 5: Solve for x
    x = 34,156,881.04/6,685.77
  6. Step 6: Final answer
    x = 5,108.89

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Half scale
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Double scale
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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.