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Finding the Fourth Proportional to 33,866.74, 46,737.78 and 20,437.78

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Solution

The fourth proportional to 33,866.74, 46,737.78 and 20,437.78 is: 28,205.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,866.74 : 46,737.78 = 20,437.78 : x
  2. Step 2: Convert to fraction form
    33,866.74/46,737.78 = 20,437.78/x
  3. Step 3: Cross multiply
    33,866.74x = 46,737.78 × 20,437.78
  4. Step 4: Simplify right side
    33,866.74x = 955,216,465.33
  5. Step 5: Solve for x
    x = 955,216,465.33/33,866.74
  6. Step 6: Final answer
    x = 28,205.15

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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.