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Finding the Third Proportional to 10,120,047 and 21,686,430

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Solution

The third proportional to 10,120,047 and 21,686,430 is: 46,472,239.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120,047 : 21,686,430 = 21,686,430 : x
  2. Step 2: Convert to fraction form
    10,120,047/21,686,430 = 21,686,430/x
  3. Step 3: Cross multiply
    10,120,047x = 21,686,430 × 21,686,430
  4. Step 4: Simplify right side
    10,120,047x = 470,301,246,144,900
  5. Step 5: Solve for x
    x = 470,301,246,144,900/10,120,047
  6. Step 6: Final answer
    x = 46,472,239.32

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.