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Finding the Fourth Proportional to 9,419.91, 14,186.28 and 8,579.16

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Solution

The fourth proportional to 9,419.91, 14,186.28 and 8,579.16 is: 12,920.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419.91 : 14,186.28 = 8,579.16 : x
  2. Step 2: Convert to fraction form
    9,419.91/14,186.28 = 8,579.16/x
  3. Step 3: Cross multiply
    9,419.91x = 14,186.28 × 8,579.16
  4. Step 4: Simplify right side
    9,419.91x = 121,706,365.92
  5. Step 5: Solve for x
    x = 121,706,365.92/9,419.91
  6. Step 6: Final answer
    x = 12,920.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.