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Finding the Fourth Proportional to 9,133.64, 13,692.72 and 3,868.44

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Solution

The fourth proportional to 9,133.64, 13,692.72 and 3,868.44 is: 5,799.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,133.64 : 13,692.72 = 3,868.44 : x
  2. Step 2: Convert to fraction form
    9,133.64/13,692.72 = 3,868.44/x
  3. Step 3: Cross multiply
    9,133.64x = 13,692.72 × 3,868.44
  4. Step 4: Simplify right side
    9,133.64x = 52,969,465.76
  5. Step 5: Solve for x
    x = 52,969,465.76/9,133.64
  6. Step 6: Final answer
    x = 5,799.38

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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.