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Finding the Fourth Proportional to 8,889,793.65, 13,334,690.48 and 7,966,004.85

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Solution

The fourth proportional to 8,889,793.65, 13,334,690.48 and 7,966,004.85 is: 11,949,007.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889,793.65 : 13,334,690.48 = 7,966,004.85 : x
  2. Step 2: Convert to fraction form
    8,889,793.65/13,334,690.48 = 7,966,004.85/x
  3. Step 3: Cross multiply
    8,889,793.65x = 13,334,690.48 × 7,966,004.85
  4. Step 4: Simplify right side
    8,889,793.65x = 106,224,208,997,098.80
  5. Step 5: Solve for x
    x = 106,224,208,997,098.80/8,889,793.65
  6. Step 6: Final answer
    x = 11,949,007.28

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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.