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Finding the Third Proportional to 4,039,726.50 and 8,639,318.25

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Solution

The third proportional to 4,039,726.50 and 8,639,318.25 is: 18,475,958.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,039,726.50 : 8,639,318.25 = 8,639,318.25 : x
  2. Step 2: Convert to fraction form
    4,039,726.50/8,639,318.25 = 8,639,318.25/x
  3. Step 3: Cross multiply
    4,039,726.50x = 8,639,318.25 × 8,639,318.25
  4. Step 4: Simplify right side
    4,039,726.50x = 74,637,819,824,783.06
  5. Step 5: Solve for x
    x = 74,637,819,824,783.06/4,039,726.50
  6. Step 6: Final answer
    x = 18,475,958.66

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.