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Finding the Fourth Proportional to 1,674.60, 2,512.88 and 700.62

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Solution

The fourth proportional to 1,674.60, 2,512.88 and 700.62 is: 1,051.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.60 : 2,512.88 = 700.62 : x
  2. Step 2: Convert to fraction form
    1,674.60/2,512.88 = 700.62/x
  3. Step 3: Cross multiply
    1,674.60x = 2,512.88 × 700.62
  4. Step 4: Simplify right side
    1,674.60x = 1,760,573.99
  5. Step 5: Solve for x
    x = 1,760,573.99/1,674.60
  6. Step 6: Final answer
    x = 1,051.34

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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.