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Finding the Fourth Proportional to 6,918.02, 9,546.84 and 3,774.22

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Solution

The fourth proportional to 6,918.02, 9,546.84 and 3,774.22 is: 5,208.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.02 : 9,546.84 = 3,774.22 : x
  2. Step 2: Convert to fraction form
    6,918.02/9,546.84 = 3,774.22/x
  3. Step 3: Cross multiply
    6,918.02x = 9,546.84 × 3,774.22
  4. Step 4: Simplify right side
    6,918.02x = 36,031,874.46
  5. Step 5: Solve for x
    x = 36,031,874.46/6,918.02
  6. Step 6: Final answer
    x = 5,208.41

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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.