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Finding the Fourth Proportional to 16,390,879.20, 22,980,823.20 and 16,390,879.20

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Solution

The fourth proportional to 16,390,879.20, 22,980,823.20 and 16,390,879.20 is: 22,980,823.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,390,879.20 : 22,980,823.20 = 16,390,879.20 : x
  2. Step 2: Convert to fraction form
    16,390,879.20/22,980,823.20 = 16,390,879.20/x
  3. Step 3: Cross multiply
    16,390,879.20x = 22,980,823.20 × 16,390,879.20
  4. Step 4: Simplify right side
    16,390,879.20x = 376,675,896,987,757.44
  5. Step 5: Solve for x
    x = 376,675,896,987,757.44/16,390,879.20
  6. Step 6: Final answer
    x = 22,980,823.20

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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.