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Finding the Fourth Proportional to 20,762,502.82, 28,648,098.39 and 11,593,734.82

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Solution

The fourth proportional to 20,762,502.82, 28,648,098.39 and 11,593,734.82 is: 15,997,033.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762,502.82 : 28,648,098.39 = 11,593,734.82 : x
  2. Step 2: Convert to fraction form
    20,762,502.82/28,648,098.39 = 11,593,734.82/x
  3. Step 3: Cross multiply
    20,762,502.82x = 28,648,098.39 × 11,593,734.82
  4. Step 4: Simplify right side
    20,762,502.82x = 332,138,455,802,785.25
  5. Step 5: Solve for x
    x = 332,138,455,802,785.25/20,762,502.82
  6. Step 6: Final answer
    x = 15,997,033.63

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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.