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Finding the Fourth Proportional to 7,843,668.72, 11,765,512.32 and 2,452,347.36

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Solution

The fourth proportional to 7,843,668.72, 11,765,512.32 and 2,452,347.36 is: 3,678,523.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,843,668.72 : 11,765,512.32 = 2,452,347.36 : x
  2. Step 2: Convert to fraction form
    7,843,668.72/11,765,512.32 = 2,452,347.36/x
  3. Step 3: Cross multiply
    7,843,668.72x = 11,765,512.32 × 2,452,347.36
  4. Step 4: Simplify right side
    7,843,668.72x = 28,853,123,076,999.47
  5. Step 5: Solve for x
    x = 28,853,123,076,999.47/7,843,668.72
  6. Step 6: Final answer
    x = 3,678,523.93

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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.