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Finding the Third Proportional to 915,350,082.05 and 1,986,744,526.45

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Solution

The third proportional to 915,350,082.05 and 1,986,744,526.45 is: 4,312,179,450.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,350,082.05 : 1,986,744,526.45 = 1,986,744,526.45 : x
  2. Step 2: Convert to fraction form
    915,350,082.05/1,986,744,526.45 = 1,986,744,526.45/x
  3. Step 3: Cross multiply
    915,350,082.05x = 1,986,744,526.45 × 1,986,744,526.45
  4. Step 4: Simplify right side
    915,350,082.05x = 3,947,153,813,391,352,320
  5. Step 5: Solve for x
    x = 3,947,153,813,391,352,320/915,350,082.05
  6. Step 6: Final answer
    x = 4,312,179,450.04

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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.