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Finding the Fourth Proportional to 56,620.96, 78,113.92 and 33,960.96

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Solution

The fourth proportional to 56,620.96, 78,113.92 and 33,960.96 is: 46,852.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,620.96 : 78,113.92 = 33,960.96 : x
  2. Step 2: Convert to fraction form
    56,620.96/78,113.92 = 33,960.96/x
  3. Step 3: Cross multiply
    56,620.96x = 78,113.92 × 33,960.96
  4. Step 4: Simplify right side
    56,620.96x = 2,652,823,712.56
  5. Step 5: Solve for x
    x = 2,652,823,712.56/56,620.96
  6. Step 6: Final answer
    x = 46,852.33

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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.