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Finding the Fourth Proportional to 7,103.49, 9,802.84 and 4,272.49

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Solution

The fourth proportional to 7,103.49, 9,802.84 and 4,272.49 is: 5,896.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,103.49 : 9,802.84 = 4,272.49 : x
  2. Step 2: Convert to fraction form
    7,103.49/9,802.84 = 4,272.49/x
  3. Step 3: Cross multiply
    7,103.49x = 9,802.84 × 4,272.49
  4. Step 4: Simplify right side
    7,103.49x = 41,882,535.87
  5. Step 5: Solve for x
    x = 41,882,535.87/7,103.49
  6. Step 6: Final answer
    x = 5,896.05

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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.