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Finding the Fourth Proportional to 6,278.36, 8,664.18 and 3,483.86

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Solution

The fourth proportional to 6,278.36, 8,664.18 and 3,483.86 is: 4,807.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.36 : 8,664.18 = 3,483.86 : x
  2. Step 2: Convert to fraction form
    6,278.36/8,664.18 = 3,483.86/x
  3. Step 3: Cross multiply
    6,278.36x = 8,664.18 × 3,483.86
  4. Step 4: Simplify right side
    6,278.36x = 30,184,790.13
  5. Step 5: Solve for x
    x = 30,184,790.13/6,278.36
  6. Step 6: Final answer
    x = 4,807.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.