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Finding the Fourth Proportional to 22,391.40, 33,585.89 and 6,807.81

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Solution

The fourth proportional to 22,391.40, 33,585.89 and 6,807.81 is: 10,211.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,391.40 : 33,585.89 = 6,807.81 : x
  2. Step 2: Convert to fraction form
    22,391.40/33,585.89 = 6,807.81/x
  3. Step 3: Cross multiply
    22,391.40x = 33,585.89 × 6,807.81
  4. Step 4: Simplify right side
    22,391.40x = 228,646,357.80
  5. Step 5: Solve for x
    x = 228,646,357.80/22,391.40
  6. Step 6: Final answer
    x = 10,211.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.