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Finding the Fourth Proportional to 33,866.88, 46,732.80 and 18,960

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Solution

The fourth proportional to 33,866.88, 46,732.80 and 18,960 is: 26,162.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,866.88 : 46,732.80 = 18,960 : x
  2. Step 2: Convert to fraction form
    33,866.88/46,732.80 = 18,960/x
  3. Step 3: Cross multiply
    33,866.88x = 46,732.80 × 18,960
  4. Step 4: Simplify right side
    33,866.88x = 886,053,888
  5. Step 5: Solve for x
    x = 886,053,888/33,866.88
  6. Step 6: Final answer
    x = 26,162.84

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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.