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Finding the Fourth Proportional to 2,674.18, 3,690.12 and 1,495

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Solution

The fourth proportional to 2,674.18, 3,690.12 and 1,495 is: 2,062.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.18 : 3,690.12 = 1,495 : x
  2. Step 2: Convert to fraction form
    2,674.18/3,690.12 = 1,495/x
  3. Step 3: Cross multiply
    2,674.18x = 3,690.12 × 1,495
  4. Step 4: Simplify right side
    2,674.18x = 5,516,729.40
  5. Step 5: Solve for x
    x = 5,516,729.40/2,674.18
  6. Step 6: Final answer
    x = 2,062.96

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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.