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Finding the Fourth Proportional to 66,931.35, 92,367.81 and 36,717.93

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Solution

The fourth proportional to 66,931.35, 92,367.81 and 36,717.93 is: 50,672.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,931.35 : 92,367.81 = 36,717.93 : x
  2. Step 2: Convert to fraction form
    66,931.35/92,367.81 = 36,717.93/x
  3. Step 3: Cross multiply
    66,931.35x = 92,367.81 × 36,717.93
  4. Step 4: Simplify right side
    66,931.35x = 3,391,554,781.83
  5. Step 5: Solve for x
    x = 3,391,554,781.83/66,931.35
  6. Step 6: Final answer
    x = 50,672.14

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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.