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Finding the Third Proportional to 6,430,898 and 9,953,121

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Solution

The third proportional to 6,430,898 and 9,953,121 is: 15,404,476.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430,898 : 9,953,121 = 9,953,121 : x
  2. Step 2: Convert to fraction form
    6,430,898/9,953,121 = 9,953,121/x
  3. Step 3: Cross multiply
    6,430,898x = 9,953,121 × 9,953,121
  4. Step 4: Simplify right side
    6,430,898x = 99,064,617,640,641
  5. Step 5: Solve for x
    x = 99,064,617,640,641/6,430,898
  6. Step 6: Final answer
    x = 15,404,476.58

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.