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Finding the Fourth Proportional to 8,967,728.32, 12,375,763.92 and 4,893,570.88

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Solution

The fourth proportional to 8,967,728.32, 12,375,763.92 and 4,893,570.88 is: 6,753,290.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,967,728.32 : 12,375,763.92 = 4,893,570.88 : x
  2. Step 2: Convert to fraction form
    8,967,728.32/12,375,763.92 = 4,893,570.88/x
  3. Step 3: Cross multiply
    8,967,728.32x = 12,375,763.92 × 4,893,570.88
  4. Step 4: Simplify right side
    8,967,728.32x = 60,561,677,936,666.65
  5. Step 5: Solve for x
    x = 60,561,677,936,666.65/8,967,728.32
  6. Step 6: Final answer
    x = 6,753,290.89

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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.