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Finding the Fourth Proportional to 7,244,675.20, 10,867,012.80 and 7,244,675.20

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Solution

The fourth proportional to 7,244,675.20, 10,867,012.80 and 7,244,675.20 is: 10,867,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,244,675.20 : 10,867,012.80 = 7,244,675.20 : x
  2. Step 2: Convert to fraction form
    7,244,675.20/10,867,012.80 = 7,244,675.20/x
  3. Step 3: Cross multiply
    7,244,675.20x = 10,867,012.80 × 7,244,675.20
  4. Step 4: Simplify right side
    7,244,675.20x = 78,727,978,130,242.56
  5. Step 5: Solve for x
    x = 78,727,978,130,242.56/7,244,675.20
  6. Step 6: Final answer
    x = 10,867,012.80

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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.