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Finding the Third Proportional to 4,184,758.50 and 8,871,770.50

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Solution

The third proportional to 4,184,758.50 and 8,871,770.50 is: 18,808,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,184,758.50 : 8,871,770.50 = 8,871,770.50 : x
  2. Step 2: Convert to fraction form
    4,184,758.50/8,871,770.50 = 8,871,770.50/x
  3. Step 3: Cross multiply
    4,184,758.50x = 8,871,770.50 × 8,871,770.50
  4. Step 4: Simplify right side
    4,184,758.50x = 78,708,311,804,670.25
  5. Step 5: Solve for x
    x = 78,708,311,804,670.25/4,184,758.50
  6. Step 6: Final answer
    x = 18,808,328.32

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.