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Finding the Fourth Proportional to 3,595.44, 5,393.64 and 1,515.12

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Solution

The fourth proportional to 3,595.44, 5,393.64 and 1,515.12 is: 2,272.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,595.44 : 5,393.64 = 1,515.12 : x
  2. Step 2: Convert to fraction form
    3,595.44/5,393.64 = 1,515.12/x
  3. Step 3: Cross multiply
    3,595.44x = 5,393.64 × 1,515.12
  4. Step 4: Simplify right side
    3,595.44x = 8,172,011.84
  5. Step 5: Solve for x
    x = 8,172,011.84/3,595.44
  6. Step 6: Final answer
    x = 2,272.88

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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.