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Finding the Fourth Proportional to 9,134.96, 12,606.21 and 4,943.21

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Solution

The fourth proportional to 9,134.96, 12,606.21 and 4,943.21 is: 6,821.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,134.96 : 12,606.21 = 4,943.21 : x
  2. Step 2: Convert to fraction form
    9,134.96/12,606.21 = 4,943.21/x
  3. Step 3: Cross multiply
    9,134.96x = 12,606.21 × 4,943.21
  4. Step 4: Simplify right side
    9,134.96x = 62,315,080.30
  5. Step 5: Solve for x
    x = 62,315,080.30/9,134.96
  6. Step 6: Final answer
    x = 6,821.61

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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.