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Finding the Fourth Proportional to 55,358.65, 83,040.54 and 15,914.89

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Solution

The fourth proportional to 55,358.65, 83,040.54 and 15,914.89 is: 23,873.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,358.65 : 83,040.54 = 15,914.89 : x
  2. Step 2: Convert to fraction form
    55,358.65/83,040.54 = 15,914.89/x
  3. Step 3: Cross multiply
    55,358.65x = 83,040.54 × 15,914.89
  4. Step 4: Simplify right side
    55,358.65x = 1,321,581,059.64
  5. Step 5: Solve for x
    x = 1,321,581,059.64/55,358.65
  6. Step 6: Final answer
    x = 23,873.07

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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.