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Finding the Fourth Proportional to 2,503.82, 3,455.29 and 1,508.90

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Solution

The fourth proportional to 2,503.82, 3,455.29 and 1,508.90 is: 2,082.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,503.82 : 3,455.29 = 1,508.90 : x
  2. Step 2: Convert to fraction form
    2,503.82/3,455.29 = 1,508.90/x
  3. Step 3: Cross multiply
    2,503.82x = 3,455.29 × 1,508.90
  4. Step 4: Simplify right side
    2,503.82x = 5,213,692.20
  5. Step 5: Solve for x
    x = 5,213,692.20/2,503.82
  6. Step 6: Final answer
    x = 2,082.30

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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.