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Finding the Fourth Proportional to 44,676.84, 66,913.18 and 21,319.68

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Solution

The fourth proportional to 44,676.84, 66,913.18 and 21,319.68 is: 31,930.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,676.84 : 66,913.18 = 21,319.68 : x
  2. Step 2: Convert to fraction form
    44,676.84/66,913.18 = 21,319.68/x
  3. Step 3: Cross multiply
    44,676.84x = 66,913.18 × 21,319.68
  4. Step 4: Simplify right side
    44,676.84x = 1,426,567,585.38
  5. Step 5: Solve for x
    x = 1,426,567,585.38/44,676.84
  6. Step 6: Final answer
    x = 31,930.81

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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.