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Finding the Fourth Proportional to 13,477.16, 20,216.70 and 3,616.20

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Solution

The fourth proportional to 13,477.16, 20,216.70 and 3,616.20 is: 5,424.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.16 : 20,216.70 = 3,616.20 : x
  2. Step 2: Convert to fraction form
    13,477.16/20,216.70 = 3,616.20/x
  3. Step 3: Cross multiply
    13,477.16x = 20,216.70 × 3,616.20
  4. Step 4: Simplify right side
    13,477.16x = 73,107,630.54
  5. Step 5: Solve for x
    x = 73,107,630.54/13,477.16
  6. Step 6: Final answer
    x = 5,424.56

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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.