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Finding the Fourth Proportional to 14,949,846.90, 20,986,472.70 and 14,949,846.90

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Solution

The fourth proportional to 14,949,846.90, 20,986,472.70 and 14,949,846.90 is: 20,986,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,949,846.90 : 20,986,472.70 = 14,949,846.90 : x
  2. Step 2: Convert to fraction form
    14,949,846.90/20,986,472.70 = 14,949,846.90/x
  3. Step 3: Cross multiply
    14,949,846.90x = 20,986,472.70 × 14,949,846.90
  4. Step 4: Simplify right side
    14,949,846.90x = 313,744,553,836,029.62
  5. Step 5: Solve for x
    x = 313,744,553,836,029.62/14,949,846.90
  6. Step 6: Final answer
    x = 20,986,472.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.