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Finding the Third Proportional to 1,402,947,411.75 and 1,961,403,054.75

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Solution

The third proportional to 1,402,947,411.75 and 1,961,403,054.75 is: 2,742,156,912.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,947,411.75 : 1,961,403,054.75 = 1,961,403,054.75 : x
  2. Step 2: Convert to fraction form
    1,402,947,411.75/1,961,403,054.75 = 1,961,403,054.75/x
  3. Step 3: Cross multiply
    1,402,947,411.75x = 1,961,403,054.75 × 1,961,403,054.75
  4. Step 4: Simplify right side
    1,402,947,411.75x = 3,847,101,943,182,631,424
  5. Step 5: Solve for x
    x = 3,847,101,943,182,631,424/1,402,947,411.75
  6. Step 6: Final answer
    x = 2,742,156,912.63

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.