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Finding the Third Proportional to 1,999,677.38 and 4,302,816.19

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Solution

The third proportional to 1,999,677.38 and 4,302,816.19 is: 9,258,607.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999,677.38 : 4,302,816.19 = 4,302,816.19 : x
  2. Step 2: Convert to fraction form
    1,999,677.38/4,302,816.19 = 4,302,816.19/x
  3. Step 3: Cross multiply
    1,999,677.38x = 4,302,816.19 × 4,302,816.19
  4. Step 4: Simplify right side
    1,999,677.38x = 18,514,227,143,412.04
  5. Step 5: Solve for x
    x = 18,514,227,143,412.04/1,999,677.38
  6. Step 6: Final answer
    x = 9,258,607.10

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.