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Finding the Fourth Proportional to 7,616.07, 11,421.66 and 2,420.73

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Solution

The fourth proportional to 7,616.07, 11,421.66 and 2,420.73 is: 3,630.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,616.07 : 11,421.66 = 2,420.73 : x
  2. Step 2: Convert to fraction form
    7,616.07/11,421.66 = 2,420.73/x
  3. Step 3: Cross multiply
    7,616.07x = 11,421.66 × 2,420.73
  4. Step 4: Simplify right side
    7,616.07x = 27,648,755.01
  5. Step 5: Solve for x
    x = 27,648,755.01/7,616.07
  6. Step 6: Final answer
    x = 3,630.32

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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.