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Finding the Fourth Proportional to 2,616.57, 3,926.21 and 2,430.68

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Solution

The fourth proportional to 2,616.57, 3,926.21 and 2,430.68 is: 3,647.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.57 : 3,926.21 = 2,430.68 : x
  2. Step 2: Convert to fraction form
    2,616.57/3,926.21 = 2,430.68/x
  3. Step 3: Cross multiply
    2,616.57x = 3,926.21 × 2,430.68
  4. Step 4: Simplify right side
    2,616.57x = 9,543,328.34
  5. Step 5: Solve for x
    x = 9,543,328.34/2,616.57
  6. Step 6: Final answer
    x = 3,647.27

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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.