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Finding the Fourth Proportional to 66,870, 92,280.60 and 37,062

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Solution

The fourth proportional to 66,870, 92,280.60 and 37,062 is: 51,145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,870 : 92,280.60 = 37,062 : x
  2. Step 2: Convert to fraction form
    66,870/92,280.60 = 37,062/x
  3. Step 3: Cross multiply
    66,870x = 92,280.60 × 37,062
  4. Step 4: Simplify right side
    66,870x = 3,420,103,597.20
  5. Step 5: Solve for x
    x = 3,420,103,597.20/66,870
  6. Step 6: Final answer
    x = 51,145.56

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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.