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Finding the Fourth Proportional to 55,894.25, 77,108.15 and 33,220.53

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Solution

The fourth proportional to 55,894.25, 77,108.15 and 33,220.53 is: 45,828.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,894.25 : 77,108.15 = 33,220.53 : x
  2. Step 2: Convert to fraction form
    55,894.25/77,108.15 = 33,220.53/x
  3. Step 3: Cross multiply
    55,894.25x = 77,108.15 × 33,220.53
  4. Step 4: Simplify right side
    55,894.25x = 2,561,573,693.37
  5. Step 5: Solve for x
    x = 2,561,573,693.37/55,894.25
  6. Step 6: Final answer
    x = 45,828.93

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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.