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Finding the Fourth Proportional to 15,686,786.30, 23,530,179.45 and 15,686,786.30

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Solution

The fourth proportional to 15,686,786.30, 23,530,179.45 and 15,686,786.30 is: 23,530,179.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686,786.30 : 23,530,179.45 = 15,686,786.30 : x
  2. Step 2: Convert to fraction form
    15,686,786.30/23,530,179.45 = 15,686,786.30/x
  3. Step 3: Cross multiply
    15,686,786.30x = 23,530,179.45 × 15,686,786.30
  4. Step 4: Simplify right side
    15,686,786.30x = 369,112,896,632,801.56
  5. Step 5: Solve for x
    x = 369,112,896,632,801.56/15,686,786.30
  6. Step 6: Final answer
    x = 23,530,179.45

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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.