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Finding the Fourth Proportional to 56,420.33, 77,857.71 and 33,745.92

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Solution

The fourth proportional to 56,420.33, 77,857.71 and 33,745.92 is: 46,567.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,420.33 : 77,857.71 = 33,745.92 : x
  2. Step 2: Convert to fraction form
    56,420.33/77,857.71 = 33,745.92/x
  3. Step 3: Cross multiply
    56,420.33x = 77,857.71 × 33,745.92
  4. Step 4: Simplify right side
    56,420.33x = 2,627,380,340.77
  5. Step 5: Solve for x
    x = 2,627,380,340.77/56,420.33
  6. Step 6: Final answer
    x = 46,567.97

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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.