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Finding the Fourth Proportional to 33,516.71, 46,241.80 and 18,978.91

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Solution

The fourth proportional to 33,516.71, 46,241.80 and 18,978.91 is: 26,184.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,516.71 : 46,241.80 = 18,978.91 : x
  2. Step 2: Convert to fraction form
    33,516.71/46,241.80 = 18,978.91/x
  3. Step 3: Cross multiply
    33,516.71x = 46,241.80 × 18,978.91
  4. Step 4: Simplify right side
    33,516.71x = 877,619,181.29
  5. Step 5: Solve for x
    x = 877,619,181.29/33,516.71
  6. Step 6: Final answer
    x = 26,184.53

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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.