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Finding the Fourth Proportional to 6,573.62, 9,858.30 and 2,189.90

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Solution

The fourth proportional to 6,573.62, 9,858.30 and 2,189.90 is: 3,284.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,573.62 : 9,858.30 = 2,189.90 : x
  2. Step 2: Convert to fraction form
    6,573.62/9,858.30 = 2,189.90/x
  3. Step 3: Cross multiply
    6,573.62x = 9,858.30 × 2,189.90
  4. Step 4: Simplify right side
    6,573.62x = 21,588,691.17
  5. Step 5: Solve for x
    x = 21,588,691.17/6,573.62
  6. Step 6: Final answer
    x = 3,284.14

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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.