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Finding the Fourth Proportional to 5,578.84, 7,708.60 and 4,393.25

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Solution

The fourth proportional to 5,578.84, 7,708.60 and 4,393.25 is: 6,070.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578.84 : 7,708.60 = 4,393.25 : x
  2. Step 2: Convert to fraction form
    5,578.84/7,708.60 = 4,393.25/x
  3. Step 3: Cross multiply
    5,578.84x = 7,708.60 × 4,393.25
  4. Step 4: Simplify right side
    5,578.84x = 33,865,846.17
  5. Step 5: Solve for x
    x = 33,865,846.17/5,578.84
  6. Step 6: Final answer
    x = 6,070.41

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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.