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Finding the Fourth Proportional to 66,893.68, 92,314.16 and 36,678.93

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Solution

The fourth proportional to 66,893.68, 92,314.16 and 36,678.93 is: 50,617.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,893.68 : 92,314.16 = 36,678.93 : x
  2. Step 2: Convert to fraction form
    66,893.68/92,314.16 = 36,678.93/x
  3. Step 3: Cross multiply
    66,893.68x = 92,314.16 × 36,678.93
  4. Step 4: Simplify right side
    66,893.68x = 3,385,984,426.94
  5. Step 5: Solve for x
    x = 3,385,984,426.94/66,893.68
  6. Step 6: Final answer
    x = 50,617.40

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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.