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Finding the Fourth Proportional to 73,286.67, 109,925.71 and 28,299.17

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Solution

The fourth proportional to 73,286.67, 109,925.71 and 28,299.17 is: 42,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,286.67 : 109,925.71 = 28,299.17 : x
  2. Step 2: Convert to fraction form
    73,286.67/109,925.71 = 28,299.17/x
  3. Step 3: Cross multiply
    73,286.67x = 109,925.71 × 28,299.17
  4. Step 4: Simplify right side
    73,286.67x = 3,110,806,558.73
  5. Step 5: Solve for x
    x = 3,110,806,558.73/73,286.67
  6. Step 6: Final answer
    x = 42,447.10

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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.