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Finding the Fourth Proportional to 55,048.99, 82,576.62 and 15,603

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Solution

The fourth proportional to 55,048.99, 82,576.62 and 15,603 is: 23,405.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,048.99 : 82,576.62 = 15,603 : x
  2. Step 2: Convert to fraction form
    55,048.99/82,576.62 = 15,603/x
  3. Step 3: Cross multiply
    55,048.99x = 82,576.62 × 15,603
  4. Step 4: Simplify right side
    55,048.99x = 1,288,443,001.86
  5. Step 5: Solve for x
    x = 1,288,443,001.86/55,048.99
  6. Step 6: Final answer
    x = 23,405.39

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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.