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Finding the Fourth Proportional to 7,148,024.86, 9,865,709.09 and 4,246,857.28

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Solution

The fourth proportional to 7,148,024.86, 9,865,709.09 and 4,246,857.28 is: 5,861,515.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148,024.86 : 9,865,709.09 = 4,246,857.28 : x
  2. Step 2: Convert to fraction form
    7,148,024.86/9,865,709.09 = 4,246,857.28/x
  3. Step 3: Cross multiply
    7,148,024.86x = 9,865,709.09 × 4,246,857.28
  4. Step 4: Simplify right side
    7,148,024.86x = 41,898,258,400,665.85
  5. Step 5: Solve for x
    x = 41,898,258,400,665.85/7,148,024.86
  6. Step 6: Final answer
    x = 5,861,515.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.