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Finding the Fourth Proportional to 66,734.43, 100,054.40 and 33,430.74

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Solution

The fourth proportional to 66,734.43, 100,054.40 and 33,430.74 is: 50,122.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,734.43 : 100,054.40 = 33,430.74 : x
  2. Step 2: Convert to fraction form
    66,734.43/100,054.40 = 33,430.74/x
  3. Step 3: Cross multiply
    66,734.43x = 100,054.40 × 33,430.74
  4. Step 4: Simplify right side
    66,734.43x = 3,344,892,465.10
  5. Step 5: Solve for x
    x = 3,344,892,465.10/66,734.43
  6. Step 6: Final answer
    x = 50,122.44

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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.