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Finding the Fourth Proportional to 66,790.84, 92,044.48 and 48,891.48

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Solution

The fourth proportional to 66,790.84, 92,044.48 and 48,891.48 is: 67,377.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,790.84 : 92,044.48 = 48,891.48 : x
  2. Step 2: Convert to fraction form
    66,790.84/92,044.48 = 48,891.48/x
  3. Step 3: Cross multiply
    66,790.84x = 92,044.48 × 48,891.48
  4. Step 4: Simplify right side
    66,790.84x = 4,500,190,853.03
  5. Step 5: Solve for x
    x = 4,500,190,853.03/66,790.84
  6. Step 6: Final answer
    x = 67,377.37

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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.