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Finding the Third Proportional to 3,129,840.50 and 6,857,461

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Solution

The third proportional to 3,129,840.50 and 6,857,461 is: 15,024,654.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129,840.50 : 6,857,461 = 6,857,461 : x
  2. Step 2: Convert to fraction form
    3,129,840.50/6,857,461 = 6,857,461/x
  3. Step 3: Cross multiply
    3,129,840.50x = 6,857,461 × 6,857,461
  4. Step 4: Simplify right side
    3,129,840.50x = 47,024,771,366,521
  5. Step 5: Solve for x
    x = 47,024,771,366,521/3,129,840.50
  6. Step 6: Final answer
    x = 15,024,654.25

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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.