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Finding the Fourth Proportional to 22,367.68, 30,867.35 and 12,807.59

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Solution

The fourth proportional to 22,367.68, 30,867.35 and 12,807.59 is: 17,674.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,367.68 : 30,867.35 = 12,807.59 : x
  2. Step 2: Convert to fraction form
    22,367.68/30,867.35 = 12,807.59/x
  3. Step 3: Cross multiply
    22,367.68x = 30,867.35 × 12,807.59
  4. Step 4: Simplify right side
    22,367.68x = 395,336,144.81
  5. Step 5: Solve for x
    x = 395,336,144.81/22,367.68
  6. Step 6: Final answer
    x = 17,674.44

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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.