Home / 53,189.98-79,787.00-19,906.54

Finding the Fourth Proportional to 53,189.98, 79,787.00 and 19,906.54

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Solution

The fourth proportional to 53,189.98, 79,787.00 and 19,906.54 is: 29,860.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,189.98 : 79,787.00 = 19,906.54 : x
  2. Step 2: Convert to fraction form
    53,189.98/79,787.00 = 19,906.54/x
  3. Step 3: Cross multiply
    53,189.98x = 79,787.00 × 19,906.54
  4. Step 4: Simplify right side
    53,189.98x = 1,588,283,007.45
  5. Step 5: Solve for x
    x = 1,588,283,007.45/53,189.98
  6. Step 6: Final answer
    x = 29,860.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.