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Finding the Fourth Proportional to 3,011.52, 4,518 and 1,037.28

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Solution

The fourth proportional to 3,011.52, 4,518 and 1,037.28 is: 1,556.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.52 : 4,518 = 1,037.28 : x
  2. Step 2: Convert to fraction form
    3,011.52/4,518 = 1,037.28/x
  3. Step 3: Cross multiply
    3,011.52x = 4,518 × 1,037.28
  4. Step 4: Simplify right side
    3,011.52x = 4,686,431.04
  5. Step 5: Solve for x
    x = 4,686,431.04/3,011.52
  6. Step 6: Final answer
    x = 1,556.17

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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.