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Finding the Fourth Proportional to 2,503.90, 3,455.51 and 1,509.32

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Solution

The fourth proportional to 2,503.90, 3,455.51 and 1,509.32 is: 2,082.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,503.90 : 3,455.51 = 1,509.32 : x
  2. Step 2: Convert to fraction form
    2,503.90/3,455.51 = 1,509.32/x
  3. Step 3: Cross multiply
    2,503.90x = 3,455.51 × 1,509.32
  4. Step 4: Simplify right side
    2,503.90x = 5,215,453.08
  5. Step 5: Solve for x
    x = 5,215,453.08/2,503.90
  6. Step 6: Final answer
    x = 2,082.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.