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Finding the Fourth Proportional to 7,511.97, 11,265.93 and 2,828.99

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Solution

The fourth proportional to 7,511.97, 11,265.93 and 2,828.99 is: 4,242.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,511.97 : 11,265.93 = 2,828.99 : x
  2. Step 2: Convert to fraction form
    7,511.97/11,265.93 = 2,828.99/x
  3. Step 3: Cross multiply
    7,511.97x = 11,265.93 × 2,828.99
  4. Step 4: Simplify right side
    7,511.97x = 31,871,132.84
  5. Step 5: Solve for x
    x = 31,871,132.84/7,511.97
  6. Step 6: Final answer
    x = 4,242.71

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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.