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Finding the Third Proportional to 2,163,391 and 4,728,643.50

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Solution

The third proportional to 2,163,391 and 4,728,643.50 is: 10,335,657.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163,391 : 4,728,643.50 = 4,728,643.50 : x
  2. Step 2: Convert to fraction form
    2,163,391/4,728,643.50 = 4,728,643.50/x
  3. Step 3: Cross multiply
    2,163,391x = 4,728,643.50 × 4,728,643.50
  4. Step 4: Simplify right side
    2,163,391x = 22,360,069,350,092.25
  5. Step 5: Solve for x
    x = 22,360,069,350,092.25/2,163,391
  6. Step 6: Final answer
    x = 10,335,657.93

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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.