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Finding the Fourth Proportional to 4,880.98, 7,310.53 and 2,929.15

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Solution

The fourth proportional to 4,880.98, 7,310.53 and 2,929.15 is: 4,387.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.98 : 7,310.53 = 2,929.15 : x
  2. Step 2: Convert to fraction form
    4,880.98/7,310.53 = 2,929.15/x
  3. Step 3: Cross multiply
    4,880.98x = 7,310.53 × 2,929.15
  4. Step 4: Simplify right side
    4,880.98x = 21,413,587.75
  5. Step 5: Solve for x
    x = 21,413,587.75/4,880.98
  6. Step 6: Final answer
    x = 4,387.15

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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.