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Finding the Third Proportional to 7,621,978.50 and 15,871,221

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Solution

The third proportional to 7,621,978.50 and 15,871,221 is: 33,048,591.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621,978.50 : 15,871,221 = 15,871,221 : x
  2. Step 2: Convert to fraction form
    7,621,978.50/15,871,221 = 15,871,221/x
  3. Step 3: Cross multiply
    7,621,978.50x = 15,871,221 × 15,871,221
  4. Step 4: Simplify right side
    7,621,978.50x = 251,895,656,030,841
  5. Step 5: Solve for x
    x = 251,895,656,030,841/7,621,978.50
  6. Step 6: Final answer
    x = 33,048,591.78

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These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.