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Finding the Fourth Proportional to 11,387.70, 17,082.98 and 4,461.30

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Solution

The fourth proportional to 11,387.70, 17,082.98 and 4,461.30 is: 6,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.70 : 17,082.98 = 4,461.30 : x
  2. Step 2: Convert to fraction form
    11,387.70/17,082.98 = 4,461.30/x
  3. Step 3: Cross multiply
    11,387.70x = 17,082.98 × 4,461.30
  4. Step 4: Simplify right side
    11,387.70x = 76,212,298.67
  5. Step 5: Solve for x
    x = 76,212,298.67/11,387.70
  6. Step 6: Final answer
    x = 6,692.51

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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.