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Finding the Fourth Proportional to 66,477.25, 99,700.68 and 19,091.97

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Solution

The fourth proportional to 66,477.25, 99,700.68 and 19,091.97 is: 28,633.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,477.25 : 99,700.68 = 19,091.97 : x
  2. Step 2: Convert to fraction form
    66,477.25/99,700.68 = 19,091.97/x
  3. Step 3: Cross multiply
    66,477.25x = 99,700.68 × 19,091.97
  4. Step 4: Simplify right side
    66,477.25x = 1,903,482,391.54
  5. Step 5: Solve for x
    x = 1,903,482,391.54/66,477.25
  6. Step 6: Final answer
    x = 28,633.59

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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.