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Finding the Fourth Proportional to 7,671,276.72, 11,503,923.48 and 2,876,353.20

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Solution

The fourth proportional to 7,671,276.72, 11,503,923.48 and 2,876,353.20 is: 4,313,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,671,276.72 : 11,503,923.48 = 2,876,353.20 : x
  2. Step 2: Convert to fraction form
    7,671,276.72/11,503,923.48 = 2,876,353.20/x
  3. Step 3: Cross multiply
    7,671,276.72x = 11,503,923.48 × 2,876,353.20
  4. Step 4: Simplify right side
    7,671,276.72x = 33,089,347,114,253.14
  5. Step 5: Solve for x
    x = 33,089,347,114,253.14/7,671,276.72
  6. Step 6: Final answer
    x = 4,313,408.10

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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.