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Finding the Fourth Proportional to 66,888.94, 100,343.21 and 22,500.59

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Solution

The fourth proportional to 66,888.94, 100,343.21 and 22,500.59 is: 33,754.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,888.94 : 100,343.21 = 22,500.59 : x
  2. Step 2: Convert to fraction form
    66,888.94/100,343.21 = 22,500.59/x
  3. Step 3: Cross multiply
    66,888.94x = 100,343.21 × 22,500.59
  4. Step 4: Simplify right side
    66,888.94x = 2,257,780,813.27
  5. Step 5: Solve for x
    x = 2,257,780,813.27/66,888.94
  6. Step 6: Final answer
    x = 33,754.17

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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.