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Finding the Fourth Proportional to 5,662.60, 8,477.10 and 4,208.20

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Solution

The fourth proportional to 5,662.60, 8,477.10 and 4,208.20 is: 6,299.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,662.60 : 8,477.10 = 4,208.20 : x
  2. Step 2: Convert to fraction form
    5,662.60/8,477.10 = 4,208.20/x
  3. Step 3: Cross multiply
    5,662.60x = 8,477.10 × 4,208.20
  4. Step 4: Simplify right side
    5,662.60x = 35,673,332.22
  5. Step 5: Solve for x
    x = 35,673,332.22/5,662.60
  6. Step 6: Final answer
    x = 6,299.81

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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.