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Finding the Fourth Proportional to 9,395.84, 12,966.22 and 5,416.92

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Solution

The fourth proportional to 9,395.84, 12,966.22 and 5,416.92 is: 7,475.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,395.84 : 12,966.22 = 5,416.92 : x
  2. Step 2: Convert to fraction form
    9,395.84/12,966.22 = 5,416.92/x
  3. Step 3: Cross multiply
    9,395.84x = 12,966.22 × 5,416.92
  4. Step 4: Simplify right side
    9,395.84x = 70,236,976.44
  5. Step 5: Solve for x
    x = 70,236,976.44/9,395.84
  6. Step 6: Final answer
    x = 7,475.33

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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.