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Finding the Third Proportional to 1,145,688.09 and 2,488,428.42

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Solution

The third proportional to 1,145,688.09 and 2,488,428.42 is: 5,404,853.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,688.09 : 2,488,428.42 = 2,488,428.42 : x
  2. Step 2: Convert to fraction form
    1,145,688.09/2,488,428.42 = 2,488,428.42/x
  3. Step 3: Cross multiply
    1,145,688.09x = 2,488,428.42 × 2,488,428.42
  4. Step 4: Simplify right side
    1,145,688.09x = 6,192,276,010,795.30
  5. Step 5: Solve for x
    x = 6,192,276,010,795.30/1,145,688.09
  6. Step 6: Final answer
    x = 5,404,853.24

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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.