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Finding the Fourth Proportional to 1,755.10, 2,628.16 and 1,703.20

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Solution

The fourth proportional to 1,755.10, 2,628.16 and 1,703.20 is: 2,550.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.10 : 2,628.16 = 1,703.20 : x
  2. Step 2: Convert to fraction form
    1,755.10/2,628.16 = 1,703.20/x
  3. Step 3: Cross multiply
    1,755.10x = 2,628.16 × 1,703.20
  4. Step 4: Simplify right side
    1,755.10x = 4,476,282.11
  5. Step 5: Solve for x
    x = 4,476,282.11/1,755.10
  6. Step 6: Final answer
    x = 2,550.44

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1.5x scale

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.