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Finding the Fourth Proportional to 33,112.63, 45,695.43 and 18,208.63

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Solution

The fourth proportional to 33,112.63, 45,695.43 and 18,208.63 is: 25,127.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,112.63 : 45,695.43 = 18,208.63 : x
  2. Step 2: Convert to fraction form
    33,112.63/45,695.43 = 18,208.63/x
  3. Step 3: Cross multiply
    33,112.63x = 45,695.43 × 18,208.63
  4. Step 4: Simplify right side
    33,112.63x = 832,050,858.04
  5. Step 5: Solve for x
    x = 832,050,858.04/33,112.63
  6. Step 6: Final answer
    x = 25,127.90

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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.