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Finding the Third Proportional to 18,716,835 and 40,219,206

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Solution

The third proportional to 18,716,835 and 40,219,206 is: 86,424,041.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,716,835 : 40,219,206 = 40,219,206 : x
  2. Step 2: Convert to fraction form
    18,716,835/40,219,206 = 40,219,206/x
  3. Step 3: Cross multiply
    18,716,835x = 40,219,206 × 40,219,206
  4. Step 4: Simplify right side
    18,716,835x = 1,617,584,531,270,436
  5. Step 5: Solve for x
    x = 1,617,584,531,270,436/18,716,835
  6. Step 6: Final answer
    x = 86,424,041.85

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.