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Finding the Fourth Proportional to 7,517.28, 10,373.82 and 4,205.28

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Solution

The fourth proportional to 7,517.28, 10,373.82 and 4,205.28 is: 5,803.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,517.28 : 10,373.82 = 4,205.28 : x
  2. Step 2: Convert to fraction form
    7,517.28/10,373.82 = 4,205.28/x
  3. Step 3: Cross multiply
    7,517.28x = 10,373.82 × 4,205.28
  4. Step 4: Simplify right side
    7,517.28x = 43,624,817.77
  5. Step 5: Solve for x
    x = 43,624,817.77/7,517.28
  6. Step 6: Final answer
    x = 5,803.27

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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.