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Finding the Fourth Proportional to 5,419.84, 7,479.33 and 2,935.84

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Solution

The fourth proportional to 5,419.84, 7,479.33 and 2,935.84 is: 4,051.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.84 : 7,479.33 = 2,935.84 : x
  2. Step 2: Convert to fraction form
    5,419.84/7,479.33 = 2,935.84/x
  3. Step 3: Cross multiply
    5,419.84x = 7,479.33 × 2,935.84
  4. Step 4: Simplify right side
    5,419.84x = 21,958,078.79
  5. Step 5: Solve for x
    x = 21,958,078.79/5,419.84
  6. Step 6: Final answer
    x = 4,051.43

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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.