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Finding the Fourth Proportional to 5,978,680.20, 8,968,020.30 and 5,925,536.10

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Solution

The fourth proportional to 5,978,680.20, 8,968,020.30 and 5,925,536.10 is: 8,888,304.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978,680.20 : 8,968,020.30 = 5,925,536.10 : x
  2. Step 2: Convert to fraction form
    5,978,680.20/8,968,020.30 = 5,925,536.10/x
  3. Step 3: Cross multiply
    5,978,680.20x = 8,968,020.30 × 5,925,536.10
  4. Step 4: Simplify right side
    5,978,680.20x = 53,140,328,033,182.83
  5. Step 5: Solve for x
    x = 53,140,328,033,182.83/5,978,680.20
  6. Step 6: Final answer
    x = 8,888,304.15

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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.