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Finding the Fourth Proportional to 62,661.09, 86,472.33 and 33,980.74

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Solution

The fourth proportional to 62,661.09, 86,472.33 and 33,980.74 is: 46,893.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,661.09 : 86,472.33 = 33,980.74 : x
  2. Step 2: Convert to fraction form
    62,661.09/86,472.33 = 33,980.74/x
  3. Step 3: Cross multiply
    62,661.09x = 86,472.33 × 33,980.74
  4. Step 4: Simplify right side
    62,661.09x = 2,938,394,007.80
  5. Step 5: Solve for x
    x = 2,938,394,007.80/62,661.09
  6. Step 6: Final answer
    x = 46,893.44

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Double scale
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1.5x scale

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.