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Finding the Fourth Proportional to 33,645.78, 46,420.90 and 19,495.89

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Solution

The fourth proportional to 33,645.78, 46,420.90 and 19,495.89 is: 26,898.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,645.78 : 46,420.90 = 19,495.89 : x
  2. Step 2: Convert to fraction form
    33,645.78/46,420.90 = 19,495.89/x
  3. Step 3: Cross multiply
    33,645.78x = 46,420.90 × 19,495.89
  4. Step 4: Simplify right side
    33,645.78x = 905,016,711.36
  5. Step 5: Solve for x
    x = 905,016,711.36/33,645.78
  6. Step 6: Final answer
    x = 26,898.37

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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.