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Finding the Fourth Proportional to 2,692.69, 3,716.21 and 1,513.53

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Solution

The fourth proportional to 2,692.69, 3,716.21 and 1,513.53 is: 2,088.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.69 : 3,716.21 = 1,513.53 : x
  2. Step 2: Convert to fraction form
    2,692.69/3,716.21 = 1,513.53/x
  3. Step 3: Cross multiply
    2,692.69x = 3,716.21 × 1,513.53
  4. Step 4: Simplify right side
    2,692.69x = 5,624,599.11
  5. Step 5: Solve for x
    x = 5,624,599.11/2,692.69
  6. Step 6: Final answer
    x = 2,088.84

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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.