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Finding the Fourth Proportional to 61,940.63, 85,478.52 and 33,646.33

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Solution

The fourth proportional to 61,940.63, 85,478.52 and 33,646.33 is: 46,432.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,940.63 : 85,478.52 = 33,646.33 : x
  2. Step 2: Convert to fraction form
    61,940.63/85,478.52 = 33,646.33/x
  3. Step 3: Cross multiply
    61,940.63x = 85,478.52 × 33,646.33
  4. Step 4: Simplify right side
    61,940.63x = 2,876,038,491.83
  5. Step 5: Solve for x
    x = 2,876,038,491.83/61,940.63
  6. Step 6: Final answer
    x = 46,432.18

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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.