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Finding the Fourth Proportional to 50,466.68, 69,645.90 and 28,112.12

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Solution

The fourth proportional to 50,466.68, 69,645.90 and 28,112.12 is: 38,795.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,466.68 : 69,645.90 = 28,112.12 : x
  2. Step 2: Convert to fraction form
    50,466.68/69,645.90 = 28,112.12/x
  3. Step 3: Cross multiply
    50,466.68x = 69,645.90 × 28,112.12
  4. Step 4: Simplify right side
    50,466.68x = 1,957,893,898.31
  5. Step 5: Solve for x
    x = 1,957,893,898.31/50,466.68
  6. Step 6: Final answer
    x = 38,795.77

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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.