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Finding the Fourth Proportional to 33,379.76, 46,064.10 and 20,804.50

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Solution

The fourth proportional to 33,379.76, 46,064.10 and 20,804.50 is: 28,710.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,379.76 : 46,064.10 = 20,804.50 : x
  2. Step 2: Convert to fraction form
    33,379.76/46,064.10 = 20,804.50/x
  3. Step 3: Cross multiply
    33,379.76x = 46,064.10 × 20,804.50
  4. Step 4: Simplify right side
    33,379.76x = 958,340,568.45
  5. Step 5: Solve for x
    x = 958,340,568.45/33,379.76
  6. Step 6: Final answer
    x = 28,710.23

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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.