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Finding the Fourth Proportional to 4,578.93, 6,867.45 and 1,291.14

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Solution

The fourth proportional to 4,578.93, 6,867.45 and 1,291.14 is: 1,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,578.93 : 6,867.45 = 1,291.14 : x
  2. Step 2: Convert to fraction form
    4,578.93/6,867.45 = 1,291.14/x
  3. Step 3: Cross multiply
    4,578.93x = 6,867.45 × 1,291.14
  4. Step 4: Simplify right side
    4,578.93x = 8,866,839.39
  5. Step 5: Solve for x
    x = 8,866,839.39/4,578.93
  6. Step 6: Final answer
    x = 1,936.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.