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Finding the Fourth Proportional to 3,017.74, 4,164.78 and 1,691.67

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Solution

The fourth proportional to 3,017.74, 4,164.78 and 1,691.67 is: 2,334.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,017.74 : 4,164.78 = 1,691.67 : x
  2. Step 2: Convert to fraction form
    3,017.74/4,164.78 = 1,691.67/x
  3. Step 3: Cross multiply
    3,017.74x = 4,164.78 × 1,691.67
  4. Step 4: Simplify right side
    3,017.74x = 7,045,433.38
  5. Step 5: Solve for x
    x = 7,045,433.38/3,017.74
  6. Step 6: Final answer
    x = 2,334.67

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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.