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Finding the Fourth Proportional to 66,845.61, 100,210.10 and 33,518.97

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Solution

The fourth proportional to 66,845.61, 100,210.10 and 33,518.97 is: 50,249.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,845.61 : 100,210.10 = 33,518.97 : x
  2. Step 2: Convert to fraction form
    66,845.61/100,210.10 = 33,518.97/x
  3. Step 3: Cross multiply
    66,845.61x = 100,210.10 × 33,518.97
  4. Step 4: Simplify right side
    66,845.61x = 3,358,939,168.00
  5. Step 5: Solve for x
    x = 3,358,939,168.00/66,845.61
  6. Step 6: Final answer
    x = 50,249.21

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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.