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Finding the Fourth Proportional to 1,349.78, 2,025.36 and 700.52

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Solution

The fourth proportional to 1,349.78, 2,025.36 and 700.52 is: 1,051.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.78 : 2,025.36 = 700.52 : x
  2. Step 2: Convert to fraction form
    1,349.78/2,025.36 = 700.52/x
  3. Step 3: Cross multiply
    1,349.78x = 2,025.36 × 700.52
  4. Step 4: Simplify right side
    1,349.78x = 1,418,805.19
  5. Step 5: Solve for x
    x = 1,418,805.19/1,349.78
  6. Step 6: Final answer
    x = 1,051.14

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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.