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Finding the Third Proportional to 61,502,412 and 86,510,889

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Solution

The third proportional to 61,502,412 and 86,510,889 is: 121,688,461.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,502,412 : 86,510,889 = 86,510,889 : x
  2. Step 2: Convert to fraction form
    61,502,412/86,510,889 = 86,510,889/x
  3. Step 3: Cross multiply
    61,502,412x = 86,510,889 × 86,510,889
  4. Step 4: Simplify right side
    61,502,412x = 7,484,133,915,570,321
  5. Step 5: Solve for x
    x = 7,484,133,915,570,321/61,502,412
  6. Step 6: Final answer
    x = 121,688,461.84

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.