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Finding the Fourth Proportional to 8,398.14, 11,588.84 and 4,621.22

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Solution

The fourth proportional to 8,398.14, 11,588.84 and 4,621.22 is: 6,376.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,398.14 : 11,588.84 = 4,621.22 : x
  2. Step 2: Convert to fraction form
    8,398.14/11,588.84 = 4,621.22/x
  3. Step 3: Cross multiply
    8,398.14x = 11,588.84 × 4,621.22
  4. Step 4: Simplify right side
    8,398.14x = 53,554,579.18
  5. Step 5: Solve for x
    x = 53,554,579.18/8,398.14
  6. Step 6: Final answer
    x = 6,376.96

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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.