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Finding the Fourth Proportional to 55,795.88, 77,009.49 and 33,147.45

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Solution

The fourth proportional to 55,795.88, 77,009.49 and 33,147.45 is: 45,750.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,795.88 : 77,009.49 = 33,147.45 : x
  2. Step 2: Convert to fraction form
    55,795.88/77,009.49 = 33,147.45/x
  3. Step 3: Cross multiply
    55,795.88x = 77,009.49 × 33,147.45
  4. Step 4: Simplify right side
    55,795.88x = 2,552,668,411.82
  5. Step 5: Solve for x
    x = 2,552,668,411.82/55,795.88
  6. Step 6: Final answer
    x = 45,750.13

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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.