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Finding the Fourth Proportional to 55,602.40, 83,404.68 and 18,162.58

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Solution

The fourth proportional to 55,602.40, 83,404.68 and 18,162.58 is: 27,244.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,602.40 : 83,404.68 = 18,162.58 : x
  2. Step 2: Convert to fraction form
    55,602.40/83,404.68 = 18,162.58/x
  3. Step 3: Cross multiply
    55,602.40x = 83,404.68 × 18,162.58
  4. Step 4: Simplify right side
    55,602.40x = 1,514,844,172.87
  5. Step 5: Solve for x
    x = 1,514,844,172.87/55,602.40
  6. Step 6: Final answer
    x = 27,244.22

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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.