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Finding the Fourth Proportional to 33,021,007.80, 49,431,978.90 and 29,039,695.80

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Solution

The fourth proportional to 33,021,007.80, 49,431,978.90 and 29,039,695.80 is: 43,472,011.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,021,007.80 : 49,431,978.90 = 29,039,695.80 : x
  2. Step 2: Convert to fraction form
    33,021,007.80/49,431,978.90 = 29,039,695.80/x
  3. Step 3: Cross multiply
    33,021,007.80x = 49,431,978.90 × 29,039,695.80
  4. Step 4: Simplify right side
    33,021,007.80x = 1,435,489,630,048,018.50
  5. Step 5: Solve for x
    x = 1,435,489,630,048,018.50/33,021,007.80
  6. Step 6: Final answer
    x = 43,472,011.48

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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.