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Finding the Fourth Proportional to 33,978.54, 46,888.78 and 18,872.17

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Solution

The fourth proportional to 33,978.54, 46,888.78 and 18,872.17 is: 26,042.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,978.54 : 46,888.78 = 18,872.17 : x
  2. Step 2: Convert to fraction form
    33,978.54/46,888.78 = 18,872.17/x
  3. Step 3: Cross multiply
    33,978.54x = 46,888.78 × 18,872.17
  4. Step 4: Simplify right side
    33,978.54x = 884,893,027.25
  5. Step 5: Solve for x
    x = 884,893,027.25/33,978.54
  6. Step 6: Final answer
    x = 26,042.70

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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.