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Finding the Fourth Proportional to 2,692.92, 3,716.84 and 1,574.40

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Solution

The fourth proportional to 2,692.92, 3,716.84 and 1,574.40 is: 2,173.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.92 : 3,716.84 = 1,574.40 : x
  2. Step 2: Convert to fraction form
    2,692.92/3,716.84 = 1,574.40/x
  3. Step 3: Cross multiply
    2,692.92x = 3,716.84 × 1,574.40
  4. Step 4: Simplify right side
    2,692.92x = 5,851,785.02
  5. Step 5: Solve for x
    x = 5,851,785.02/2,692.92
  6. Step 6: Final answer
    x = 2,173.03

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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.