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Finding the Third Proportional to 21,688,290 and 46,947,168

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Solution

The third proportional to 21,688,290 and 46,947,168 is: 101,623,345.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,688,290 : 46,947,168 = 46,947,168 : x
  2. Step 2: Convert to fraction form
    21,688,290/46,947,168 = 46,947,168/x
  3. Step 3: Cross multiply
    21,688,290x = 46,947,168 × 46,947,168
  4. Step 4: Simplify right side
    21,688,290x = 2,204,036,583,220,224
  5. Step 5: Solve for x
    x = 2,204,036,583,220,224/21,688,290
  6. Step 6: Final answer
    x = 101,623,345.28

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.