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Finding the Fourth Proportional to 66,478.58, 99,696.18 and 22,093.41

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Solution

The fourth proportional to 66,478.58, 99,696.18 and 22,093.41 is: 33,132.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,478.58 : 99,696.18 = 22,093.41 : x
  2. Step 2: Convert to fraction form
    66,478.58/99,696.18 = 22,093.41/x
  3. Step 3: Cross multiply
    66,478.58x = 99,696.18 × 22,093.41
  4. Step 4: Simplify right side
    66,478.58x = 2,202,628,580.17
  5. Step 5: Solve for x
    x = 2,202,628,580.17/66,478.58
  6. Step 6: Final answer
    x = 33,132.91

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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.