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Finding the Fourth Proportional to 66,841.20, 100,310.40 and 44,647.20

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Solution

The fourth proportional to 66,841.20, 100,310.40 and 44,647.20 is: 67,003.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,841.20 : 100,310.40 = 44,647.20 : x
  2. Step 2: Convert to fraction form
    66,841.20/100,310.40 = 44,647.20/x
  3. Step 3: Cross multiply
    66,841.20x = 100,310.40 × 44,647.20
  4. Step 4: Simplify right side
    66,841.20x = 4,478,578,490.88
  5. Step 5: Solve for x
    x = 4,478,578,490.88/66,841.20
  6. Step 6: Final answer
    x = 67,003.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.