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Finding the Third Proportional to 18,312,876 and 39,811,113

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Solution

The third proportional to 18,312,876 and 39,811,113 is: 86,547,013.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312,876 : 39,811,113 = 39,811,113 : x
  2. Step 2: Convert to fraction form
    18,312,876/39,811,113 = 39,811,113/x
  3. Step 3: Cross multiply
    18,312,876x = 39,811,113 × 39,811,113
  4. Step 4: Simplify right side
    18,312,876x = 1,584,924,718,298,769
  5. Step 5: Solve for x
    x = 1,584,924,718,298,769/18,312,876
  6. Step 6: Final answer
    x = 86,547,013.06

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.