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Finding the Fourth Proportional to 66,382.99, 99,570.83 and 26,929.51

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Solution

The fourth proportional to 66,382.99, 99,570.83 and 26,929.51 is: 40,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,382.99 : 99,570.83 = 26,929.51 : x
  2. Step 2: Convert to fraction form
    66,382.99/99,570.83 = 26,929.51/x
  3. Step 3: Cross multiply
    66,382.99x = 99,570.83 × 26,929.51
  4. Step 4: Simplify right side
    66,382.99x = 2,681,393,662.19
  5. Step 5: Solve for x
    x = 2,681,393,662.19/66,382.99
  6. Step 6: Final answer
    x = 40,392.78

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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.