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Finding the Fourth Proportional to 57,406.40, 86,109.60 and 17,963.68

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Solution

The fourth proportional to 57,406.40, 86,109.60 and 17,963.68 is: 26,945.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,406.40 : 86,109.60 = 17,963.68 : x
  2. Step 2: Convert to fraction form
    57,406.40/86,109.60 = 17,963.68/x
  3. Step 3: Cross multiply
    57,406.40x = 86,109.60 × 17,963.68
  4. Step 4: Simplify right side
    57,406.40x = 1,546,845,299.33
  5. Step 5: Solve for x
    x = 1,546,845,299.33/57,406.40
  6. Step 6: Final answer
    x = 26,945.52

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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.