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Finding the Fourth Proportional to 66,899.44, 100,354.64 and 33,602.38

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Solution

The fourth proportional to 66,899.44, 100,354.64 and 33,602.38 is: 50,406.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,899.44 : 100,354.64 = 33,602.38 : x
  2. Step 2: Convert to fraction form
    66,899.44/100,354.64 = 33,602.38/x
  3. Step 3: Cross multiply
    66,899.44x = 100,354.64 × 33,602.38
  4. Step 4: Simplify right side
    66,899.44x = 3,372,154,748.04
  5. Step 5: Solve for x
    x = 3,372,154,748.04/66,899.44
  6. Step 6: Final answer
    x = 50,406.32

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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.