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Finding the Fourth Proportional to 1,674.20, 2,512.06 and 700.52

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Solution

The fourth proportional to 1,674.20, 2,512.06 and 700.52 is: 1,051.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.20 : 2,512.06 = 700.52 : x
  2. Step 2: Convert to fraction form
    1,674.20/2,512.06 = 700.52/x
  3. Step 3: Cross multiply
    1,674.20x = 2,512.06 × 700.52
  4. Step 4: Simplify right side
    1,674.20x = 1,759,748.27
  5. Step 5: Solve for x
    x = 1,759,748.27/1,674.20
  6. Step 6: Final answer
    x = 1,051.10

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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.