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Finding the Third Proportional to 4,547,178 and 9,815,553.75

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Solution

The third proportional to 4,547,178 and 9,815,553.75 is: 21,187,887.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,547,178 : 9,815,553.75 = 9,815,553.75 : x
  2. Step 2: Convert to fraction form
    4,547,178/9,815,553.75 = 9,815,553.75/x
  3. Step 3: Cross multiply
    4,547,178x = 9,815,553.75 × 9,815,553.75
  4. Step 4: Simplify right side
    4,547,178x = 96,345,095,419,139.06
  5. Step 5: Solve for x
    x = 96,345,095,419,139.06/4,547,178
  6. Step 6: Final answer
    x = 21,187,887.39

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.