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Finding the Fourth Proportional to 56,261.92, 84,424.56 and 38,745.76

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Solution

The fourth proportional to 56,261.92, 84,424.56 and 38,745.76 is: 58,140.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,261.92 : 84,424.56 = 38,745.76 : x
  2. Step 2: Convert to fraction form
    56,261.92/84,424.56 = 38,745.76/x
  3. Step 3: Cross multiply
    56,261.92x = 84,424.56 × 38,745.76
  4. Step 4: Simplify right side
    56,261.92x = 3,271,093,739.87
  5. Step 5: Solve for x
    x = 3,271,093,739.87/56,261.92
  6. Step 6: Final answer
    x = 58,140.46

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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.