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Finding the Fourth Proportional to 2,695.75, 3,717.53 and 1,751.80

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Solution

The fourth proportional to 2,695.75, 3,717.53 and 1,751.80 is: 2,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,695.75 : 3,717.53 = 1,751.80 : x
  2. Step 2: Convert to fraction form
    2,695.75/3,717.53 = 1,751.80/x
  3. Step 3: Cross multiply
    2,695.75x = 3,717.53 × 1,751.80
  4. Step 4: Simplify right side
    2,695.75x = 6,512,341.71
  5. Step 5: Solve for x
    x = 6,512,341.71/2,695.75
  6. Step 6: Final answer
    x = 2,415.78

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1.5x scale

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.