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Finding the Fourth Proportional to 6,678.59, 9,216.59 and 4,025.43

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Solution

The fourth proportional to 6,678.59, 9,216.59 and 4,025.43 is: 5,555.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.59 : 9,216.59 = 4,025.43 : x
  2. Step 2: Convert to fraction form
    6,678.59/9,216.59 = 4,025.43/x
  3. Step 3: Cross multiply
    6,678.59x = 9,216.59 × 4,025.43
  4. Step 4: Simplify right side
    6,678.59x = 37,100,717.76
  5. Step 5: Solve for x
    x = 37,100,717.76/6,678.59
  6. Step 6: Final answer
    x = 5,555.18

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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.