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Finding the Fourth Proportional to 61,164.36, 91,759.72 and 19,043.56

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Solution

The fourth proportional to 61,164.36, 91,759.72 and 19,043.56 is: 28,569.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,164.36 : 91,759.72 = 19,043.56 : x
  2. Step 2: Convert to fraction form
    61,164.36/91,759.72 = 19,043.56/x
  3. Step 3: Cross multiply
    61,164.36x = 91,759.72 × 19,043.56
  4. Step 4: Simplify right side
    61,164.36x = 1,747,431,733.40
  5. Step 5: Solve for x
    x = 1,747,431,733.40/61,164.36
  6. Step 6: Final answer
    x = 28,569.44

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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.