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Finding the Third Proportional to 1,331,472.94 and 2,912,047.45

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Solution

The third proportional to 1,331,472.94 and 2,912,047.45 is: 6,368,901.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,472.94 : 2,912,047.45 = 2,912,047.45 : x
  2. Step 2: Convert to fraction form
    1,331,472.94/2,912,047.45 = 2,912,047.45/x
  3. Step 3: Cross multiply
    1,331,472.94x = 2,912,047.45 × 2,912,047.45
  4. Step 4: Simplify right side
    1,331,472.94x = 8,480,020,369,251.80
  5. Step 5: Solve for x
    x = 8,480,020,369,251.80/1,331,472.94
  6. Step 6: Final answer
    x = 6,368,901.79

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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.