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Finding the Fourth Proportional to 56,137.70, 77,443.63 and 33,463.78

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Solution

The fourth proportional to 56,137.70, 77,443.63 and 33,463.78 is: 46,164.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,137.70 : 77,443.63 = 33,463.78 : x
  2. Step 2: Convert to fraction form
    56,137.70/77,443.63 = 33,463.78/x
  3. Step 3: Cross multiply
    56,137.70x = 77,443.63 × 33,463.78
  4. Step 4: Simplify right side
    56,137.70x = 2,591,556,596.72
  5. Step 5: Solve for x
    x = 2,591,556,596.72/56,137.70
  6. Step 6: Final answer
    x = 46,164.28

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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.