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Finding the Fourth Proportional to 5,396.84, 7,448.42 and 5,063.28

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Solution

The fourth proportional to 5,396.84, 7,448.42 and 5,063.28 is: 6,988.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.84 : 7,448.42 = 5,063.28 : x
  2. Step 2: Convert to fraction form
    5,396.84/7,448.42 = 5,063.28/x
  3. Step 3: Cross multiply
    5,396.84x = 7,448.42 × 5,063.28
  4. Step 4: Simplify right side
    5,396.84x = 37,713,436.02
  5. Step 5: Solve for x
    x = 37,713,436.02/5,396.84
  6. Step 6: Final answer
    x = 6,988.06

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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.