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Finding the Fourth Proportional to 8,773,672.80, 13,141,846.80 and 7,280,680.80

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Solution

The fourth proportional to 8,773,672.80, 13,141,846.80 and 7,280,680.80 is: 10,905,534.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,773,672.80 : 13,141,846.80 = 7,280,680.80 : x
  2. Step 2: Convert to fraction form
    8,773,672.80/13,141,846.80 = 7,280,680.80/x
  3. Step 3: Cross multiply
    8,773,672.80x = 13,141,846.80 × 7,280,680.80
  4. Step 4: Simplify right side
    8,773,672.80x = 95,681,591,673,301.44
  5. Step 5: Solve for x
    x = 95,681,591,673,301.44/8,773,672.80
  6. Step 6: Final answer
    x = 10,905,534.53

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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.