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Finding the Fourth Proportional to 4,680.54, 7,020 and 1,560.24

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Solution

The fourth proportional to 4,680.54, 7,020 and 1,560.24 is: 2,340.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.54 : 7,020 = 1,560.24 : x
  2. Step 2: Convert to fraction form
    4,680.54/7,020 = 1,560.24/x
  3. Step 3: Cross multiply
    4,680.54x = 7,020 × 1,560.24
  4. Step 4: Simplify right side
    4,680.54x = 10,952,884.80
  5. Step 5: Solve for x
    x = 10,952,884.80/4,680.54
  6. Step 6: Final answer
    x = 2,340.09

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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.