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Finding the Fourth Proportional to 2,378.87, 3,567.76 and 898.25

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Solution

The fourth proportional to 2,378.87, 3,567.76 and 898.25 is: 1,347.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.87 : 3,567.76 = 898.25 : x
  2. Step 2: Convert to fraction form
    2,378.87/3,567.76 = 898.25/x
  3. Step 3: Cross multiply
    2,378.87x = 3,567.76 × 898.25
  4. Step 4: Simplify right side
    2,378.87x = 3,204,731.63
  5. Step 5: Solve for x
    x = 3,204,731.63/2,378.87
  6. Step 6: Final answer
    x = 1,347.17

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Why These Related Problems?

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