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Finding the Fourth Proportional to 66,772.48, 92,149.12 and 36,965.12

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Solution

The fourth proportional to 66,772.48, 92,149.12 and 36,965.12 is: 51,013.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,772.48 : 92,149.12 = 36,965.12 : x
  2. Step 2: Convert to fraction form
    66,772.48/92,149.12 = 36,965.12/x
  3. Step 3: Cross multiply
    66,772.48x = 92,149.12 × 36,965.12
  4. Step 4: Simplify right side
    66,772.48x = 3,406,303,278.69
  5. Step 5: Solve for x
    x = 3,406,303,278.69/66,772.48
  6. Step 6: Final answer
    x = 51,013.58

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1.5x scale

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.