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Finding the Fourth Proportional to 44,430, 66,390.31 and 33,841.20

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Solution

The fourth proportional to 44,430, 66,390.31 and 33,841.20 is: 50,567.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,430 : 66,390.31 = 33,841.20 : x
  2. Step 2: Convert to fraction form
    44,430/66,390.31 = 33,841.20/x
  3. Step 3: Cross multiply
    44,430x = 66,390.31 × 33,841.20
  4. Step 4: Simplify right side
    44,430x = 2,246,727,758.77
  5. Step 5: Solve for x
    x = 2,246,727,758.77/44,430
  6. Step 6: Final answer
    x = 50,567.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.