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Finding the Fourth Proportional to 4,579.68, 6,864.42 and 4,210.62

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Solution

The fourth proportional to 4,579.68, 6,864.42 and 4,210.62 is: 6,311.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,579.68 : 6,864.42 = 4,210.62 : x
  2. Step 2: Convert to fraction form
    4,579.68/6,864.42 = 4,210.62/x
  3. Step 3: Cross multiply
    4,579.68x = 6,864.42 × 4,210.62
  4. Step 4: Simplify right side
    4,579.68x = 28,903,464.14
  5. Step 5: Solve for x
    x = 28,903,464.14/4,579.68
  6. Step 6: Final answer
    x = 6,311.24

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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.