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Finding the Fourth Proportional to 2,669.46, 4,005.98 and 938.08

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Solution

The fourth proportional to 2,669.46, 4,005.98 and 938.08 is: 1,407.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.46 : 4,005.98 = 938.08 : x
  2. Step 2: Convert to fraction form
    2,669.46/4,005.98 = 938.08/x
  3. Step 3: Cross multiply
    2,669.46x = 4,005.98 × 938.08
  4. Step 4: Simplify right side
    2,669.46x = 3,757,929.72
  5. Step 5: Solve for x
    x = 3,757,929.72/2,669.46
  6. Step 6: Final answer
    x = 1,407.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.