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Finding the Fourth Proportional to 57,248.44, 78,987.90 and 33,043.48

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Solution

The fourth proportional to 57,248.44, 78,987.90 and 33,043.48 is: 45,591.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,248.44 : 78,987.90 = 33,043.48 : x
  2. Step 2: Convert to fraction form
    57,248.44/78,987.90 = 33,043.48/x
  3. Step 3: Cross multiply
    57,248.44x = 78,987.90 × 33,043.48
  4. Step 4: Simplify right side
    57,248.44x = 2,610,035,093.89
  5. Step 5: Solve for x
    x = 2,610,035,093.89/57,248.44
  6. Step 6: Final answer
    x = 45,591.37

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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.