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Finding the Fourth Proportional to 57,146.86, 78,867.13 and 32,955.60

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Solution

The fourth proportional to 57,146.86, 78,867.13 and 32,955.60 is: 45,481.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,146.86 : 78,867.13 = 32,955.60 : x
  2. Step 2: Convert to fraction form
    57,146.86/78,867.13 = 32,955.60/x
  3. Step 3: Cross multiply
    57,146.86x = 78,867.13 × 32,955.60
  4. Step 4: Simplify right side
    57,146.86x = 2,599,113,589.43
  5. Step 5: Solve for x
    x = 2,599,113,589.43/57,146.86
  6. Step 6: Final answer
    x = 45,481.31

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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.