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Finding the Fourth Proportional to 45,809.72, 63,212.46 and 33,879.80

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Solution

The fourth proportional to 45,809.72, 63,212.46 and 33,879.80 is: 46,750.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,809.72 : 63,212.46 = 33,879.80 : x
  2. Step 2: Convert to fraction form
    45,809.72/63,212.46 = 33,879.80/x
  3. Step 3: Cross multiply
    45,809.72x = 63,212.46 × 33,879.80
  4. Step 4: Simplify right side
    45,809.72x = 2,141,625,502.31
  5. Step 5: Solve for x
    x = 2,141,625,502.31/45,809.72
  6. Step 6: Final answer
    x = 46,750.46

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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.