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Finding the Fourth Proportional to 55,359.95, 83,039.91 and 15,917.06

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Solution

The fourth proportional to 55,359.95, 83,039.91 and 15,917.06 is: 23,875.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,359.95 : 83,039.91 = 15,917.06 : x
  2. Step 2: Convert to fraction form
    55,359.95/83,039.91 = 15,917.06/x
  3. Step 3: Cross multiply
    55,359.95x = 83,039.91 × 15,917.06
  4. Step 4: Simplify right side
    55,359.95x = 1,321,750,814.67
  5. Step 5: Solve for x
    x = 1,321,750,814.67/55,359.95
  6. Step 6: Final answer
    x = 23,875.58

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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.