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Finding the Fourth Proportional to 4,865.60, 7,297.68 and 1,578.98

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Solution

The fourth proportional to 4,865.60, 7,297.68 and 1,578.98 is: 2,368.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,865.60 : 7,297.68 = 1,578.98 : x
  2. Step 2: Convert to fraction form
    4,865.60/7,297.68 = 1,578.98/x
  3. Step 3: Cross multiply
    4,865.60x = 7,297.68 × 1,578.98
  4. Step 4: Simplify right side
    4,865.60x = 11,522,890.77
  5. Step 5: Solve for x
    x = 11,522,890.77/4,865.60
  6. Step 6: Final answer
    x = 2,368.24

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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.