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Finding the Fourth Proportional to 4,578.63, 6,868.85 and 1,458.53

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Solution

The fourth proportional to 4,578.63, 6,868.85 and 1,458.53 is: 2,188.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,578.63 : 6,868.85 = 1,458.53 : x
  2. Step 2: Convert to fraction form
    4,578.63/6,868.85 = 1,458.53/x
  3. Step 3: Cross multiply
    4,578.63x = 6,868.85 × 1,458.53
  4. Step 4: Simplify right side
    4,578.63x = 10,018,435.43
  5. Step 5: Solve for x
    x = 10,018,435.43/4,578.63
  6. Step 6: Final answer
    x = 2,188.09

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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.