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Finding the Third Proportional to 25,643,990 and 39,834,559

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Solution

The third proportional to 25,643,990 and 39,834,559 is: 61,877,737.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,643,990 : 39,834,559 = 39,834,559 : x
  2. Step 2: Convert to fraction form
    25,643,990/39,834,559 = 39,834,559/x
  3. Step 3: Cross multiply
    25,643,990x = 39,834,559 × 39,834,559
  4. Step 4: Simplify right side
    25,643,990x = 1,586,792,090,724,481
  5. Step 5: Solve for x
    x = 1,586,792,090,724,481/25,643,990
  6. Step 6: Final answer
    x = 61,877,737.85

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.