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Finding the Fourth Proportional to 56,296.88, 77,687.94 and 33,630.78

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Solution

The fourth proportional to 56,296.88, 77,687.94 and 33,630.78 is: 46,409.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,296.88 : 77,687.94 = 33,630.78 : x
  2. Step 2: Convert to fraction form
    56,296.88/77,687.94 = 33,630.78/x
  3. Step 3: Cross multiply
    56,296.88x = 77,687.94 × 33,630.78
  4. Step 4: Simplify right side
    56,296.88x = 2,612,706,018.79
  5. Step 5: Solve for x
    x = 2,612,706,018.79/56,296.88
  6. Step 6: Final answer
    x = 46,409.43

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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.