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Finding the Third Proportional to 9,778,953 and 21,240,774

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Solution

The third proportional to 9,778,953 and 21,240,774 is: 46,136,890.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,778,953 : 21,240,774 = 21,240,774 : x
  2. Step 2: Convert to fraction form
    9,778,953/21,240,774 = 21,240,774/x
  3. Step 3: Cross multiply
    9,778,953x = 21,240,774 × 21,240,774
  4. Step 4: Simplify right side
    9,778,953x = 451,170,480,119,076
  5. Step 5: Solve for x
    x = 451,170,480,119,076/9,778,953
  6. Step 6: Final answer
    x = 46,136,890.13

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.