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Finding the Fourth Proportional to 1,895.45, 2,615.00 and 1,149.14

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Solution

The fourth proportional to 1,895.45, 2,615.00 and 1,149.14 is: 1,585.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.45 : 2,615.00 = 1,149.14 : x
  2. Step 2: Convert to fraction form
    1,895.45/2,615.00 = 1,149.14/x
  3. Step 3: Cross multiply
    1,895.45x = 2,615.00 × 1,149.14
  4. Step 4: Simplify right side
    1,895.45x = 3,005,001.89
  5. Step 5: Solve for x
    x = 3,005,001.89/1,895.45
  6. Step 6: Final answer
    x = 1,585.38

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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.