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Finding the Fourth Proportional to 66,470.69, 99,684.46 and 22,085.52

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Solution

The fourth proportional to 66,470.69, 99,684.46 and 22,085.52 is: 33,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,470.69 : 99,684.46 = 22,085.52 : x
  2. Step 2: Convert to fraction form
    66,470.69/99,684.46 = 22,085.52/x
  3. Step 3: Cross multiply
    66,470.69x = 99,684.46 × 22,085.52
  4. Step 4: Simplify right side
    66,470.69x = 2,201,583,135.02
  5. Step 5: Solve for x
    x = 2,201,583,135.02/66,470.69
  6. Step 6: Final answer
    x = 33,121.11

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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.