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Finding the Fourth Proportional to 61,968.60, 85,515.66 and 33,674.76

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Solution

The fourth proportional to 61,968.60, 85,515.66 and 33,674.76 is: 46,470.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,968.60 : 85,515.66 = 33,674.76 : x
  2. Step 2: Convert to fraction form
    61,968.60/85,515.66 = 33,674.76/x
  3. Step 3: Cross multiply
    61,968.60x = 85,515.66 × 33,674.76
  4. Step 4: Simplify right side
    61,968.60x = 2,879,719,326.74
  5. Step 5: Solve for x
    x = 2,879,719,326.74/61,968.60
  6. Step 6: Final answer
    x = 46,470.62

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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.