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Finding the Fourth Proportional to 66,893.31, 92,312.73 and 36,679.14

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Solution

The fourth proportional to 66,893.31, 92,312.73 and 36,679.14 is: 50,617.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,893.31 : 92,312.73 = 36,679.14 : x
  2. Step 2: Convert to fraction form
    66,893.31/92,312.73 = 36,679.14/x
  3. Step 3: Cross multiply
    66,893.31x = 92,312.73 × 36,679.14
  4. Step 4: Simplify right side
    66,893.31x = 3,385,951,547.45
  5. Step 5: Solve for x
    x = 3,385,951,547.45/66,893.31
  6. Step 6: Final answer
    x = 50,617.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.