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Finding the Fourth Proportional to 66,927.66, 92,358.56 and 36,712.70

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Solution

The fourth proportional to 66,927.66, 92,358.56 and 36,712.70 is: 50,662.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,927.66 : 92,358.56 = 36,712.70 : x
  2. Step 2: Convert to fraction form
    66,927.66/92,358.56 = 36,712.70/x
  3. Step 3: Cross multiply
    66,927.66x = 92,358.56 × 36,712.70
  4. Step 4: Simplify right side
    66,927.66x = 3,390,732,105.71
  5. Step 5: Solve for x
    x = 3,390,732,105.71/66,927.66
  6. Step 6: Final answer
    x = 50,662.64

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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.