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Finding the Fourth Proportional to 55,698.59, 83,552.81 and 15,717.93

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Solution

The fourth proportional to 55,698.59, 83,552.81 and 15,717.93 is: 23,578.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,698.59 : 83,552.81 = 15,717.93 : x
  2. Step 2: Convert to fraction form
    55,698.59/83,552.81 = 15,717.93/x
  3. Step 3: Cross multiply
    55,698.59x = 83,552.81 × 15,717.93
  4. Step 4: Simplify right side
    55,698.59x = 1,313,276,826.97
  5. Step 5: Solve for x
    x = 1,313,276,826.97/55,698.59
  6. Step 6: Final answer
    x = 23,578.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.