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Finding the Fourth Proportional to 2,672.95, 3,688.65 and 1,494.01

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Solution

The fourth proportional to 2,672.95, 3,688.65 and 1,494.01 is: 2,061.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.95 : 3,688.65 = 1,494.01 : x
  2. Step 2: Convert to fraction form
    2,672.95/3,688.65 = 1,494.01/x
  3. Step 3: Cross multiply
    2,672.95x = 3,688.65 × 1,494.01
  4. Step 4: Simplify right side
    2,672.95x = 5,510,879.99
  5. Step 5: Solve for x
    x = 5,510,879.99/2,672.95
  6. Step 6: Final answer
    x = 2,061.72

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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.