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Finding the Fourth Proportional to 44,309.58, 61,131.78 and 28,402.80

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Solution

The fourth proportional to 44,309.58, 61,131.78 and 28,402.80 is: 39,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,309.58 : 61,131.78 = 28,402.80 : x
  2. Step 2: Convert to fraction form
    44,309.58/61,131.78 = 28,402.80/x
  3. Step 3: Cross multiply
    44,309.58x = 61,131.78 × 28,402.80
  4. Step 4: Simplify right side
    44,309.58x = 1,736,313,720.98
  5. Step 5: Solve for x
    x = 1,736,313,720.98/44,309.58
  6. Step 6: Final answer
    x = 39,185.97

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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.