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Finding the Fourth Proportional to 6,752,769.81, 9,319,709.79 and 3,851,495.61

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Solution

The fourth proportional to 6,752,769.81, 9,319,709.79 and 3,851,495.61 is: 5,315,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,752,769.81 : 9,319,709.79 = 3,851,495.61 : x
  2. Step 2: Convert to fraction form
    6,752,769.81/9,319,709.79 = 3,851,495.61/x
  3. Step 3: Cross multiply
    6,752,769.81x = 9,319,709.79 × 3,851,495.61
  4. Step 4: Simplify right side
    6,752,769.81x = 35,894,821,342,659.02
  5. Step 5: Solve for x
    x = 35,894,821,342,659.02/6,752,769.81
  6. Step 6: Final answer
    x = 5,315,570.11

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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.