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Finding the Third Proportional to 29,918,965.50 and 65,512,990.13

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Solution

The third proportional to 29,918,965.50 and 65,512,990.13 is: 143,452,549.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,918,965.50 : 65,512,990.13 = 65,512,990.13 : x
  2. Step 2: Convert to fraction form
    29,918,965.50/65,512,990.13 = 65,512,990.13/x
  3. Step 3: Cross multiply
    29,918,965.50x = 65,512,990.13 × 65,512,990.13
  4. Step 4: Simplify right side
    29,918,965.50x = 4,291,951,875,118,347.50
  5. Step 5: Solve for x
    x = 4,291,951,875,118,347.50/29,918,965.50
  6. Step 6: Final answer
    x = 143,452,549.36

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.