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Finding the Third Proportional to 21,778,392.94 and 47,397,429.56

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Solution

The third proportional to 21,778,392.94 and 47,397,429.56 is: 103,153,448.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778,392.94 : 47,397,429.56 = 47,397,429.56 : x
  2. Step 2: Convert to fraction form
    21,778,392.94/47,397,429.56 = 47,397,429.56/x
  3. Step 3: Cross multiply
    21,778,392.94x = 47,397,429.56 × 47,397,429.56
  4. Step 4: Simplify right side
    21,778,392.94x = 2,246,516,329,132,149
  5. Step 5: Solve for x
    x = 2,246,516,329,132,149/21,778,392.94
  6. Step 6: Final answer
    x = 103,153,448.26

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.