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Finding the Third Proportional to 8,547,861.74 and 18,691,862.92

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Solution

The third proportional to 8,547,861.74 and 18,691,862.92 is: 40,874,051.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,547,861.74 : 18,691,862.92 = 18,691,862.92 : x
  2. Step 2: Convert to fraction form
    8,547,861.74/18,691,862.92 = 18,691,862.92/x
  3. Step 3: Cross multiply
    8,547,861.74x = 18,691,862.92 × 18,691,862.92
  4. Step 4: Simplify right side
    8,547,861.74x = 349,385,739,398,874.44
  5. Step 5: Solve for x
    x = 349,385,739,398,874.44/8,547,861.74
  6. Step 6: Final answer
    x = 40,874,051.34

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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.