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Finding the Fourth Proportional to 29,865.33, 44,708.90 and 18,143.01

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Solution

The fourth proportional to 29,865.33, 44,708.90 and 18,143.01 is: 27,160.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,865.33 : 44,708.90 = 18,143.01 : x
  2. Step 2: Convert to fraction form
    29,865.33/44,708.90 = 18,143.01/x
  3. Step 3: Cross multiply
    29,865.33x = 44,708.90 × 18,143.01
  4. Step 4: Simplify right side
    29,865.33x = 811,153,929.07
  5. Step 5: Solve for x
    x = 811,153,929.07/29,865.33
  6. Step 6: Final answer
    x = 27,160.39

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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.