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Finding the Fourth Proportional to 8,672,337.72, 11,967,670.80 and 4,804,781.28

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Solution

The fourth proportional to 8,672,337.72, 11,967,670.80 and 4,804,781.28 is: 6,630,512.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672,337.72 : 11,967,670.80 = 4,804,781.28 : x
  2. Step 2: Convert to fraction form
    8,672,337.72/11,967,670.80 = 4,804,781.28/x
  3. Step 3: Cross multiply
    8,672,337.72x = 11,967,670.80 × 4,804,781.28
  4. Step 4: Simplify right side
    8,672,337.72x = 57,502,040,625,042.63
  5. Step 5: Solve for x
    x = 57,502,040,625,042.63/8,672,337.72
  6. Step 6: Final answer
    x = 6,630,512.15

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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.