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Finding the Fourth Proportional to 7,164.96, 10,747.39 and 3,898.81

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Solution

The fourth proportional to 7,164.96, 10,747.39 and 3,898.81 is: 5,848.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,164.96 : 10,747.39 = 3,898.81 : x
  2. Step 2: Convert to fraction form
    7,164.96/10,747.39 = 3,898.81/x
  3. Step 3: Cross multiply
    7,164.96x = 10,747.39 × 3,898.81
  4. Step 4: Simplify right side
    7,164.96x = 41,902,031.61
  5. Step 5: Solve for x
    x = 41,902,031.61/7,164.96
  6. Step 6: Final answer
    x = 5,848.19

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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.