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Finding the Fourth Proportional to 66,283.98, 91,470.78 and 36,068.51

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Solution

The fourth proportional to 66,283.98, 91,470.78 and 36,068.51 is: 49,773.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,283.98 : 91,470.78 = 36,068.51 : x
  2. Step 2: Convert to fraction form
    66,283.98/91,470.78 = 36,068.51/x
  3. Step 3: Cross multiply
    66,283.98x = 91,470.78 × 36,068.51
  4. Step 4: Simplify right side
    66,283.98x = 3,299,214,285.78
  5. Step 5: Solve for x
    x = 3,299,214,285.78/66,283.98
  6. Step 6: Final answer
    x = 49,773.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.