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Finding the Third Proportional to 9,543,985 and 20,193,457

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Solution

The third proportional to 9,543,985 and 20,193,457 is: 42,725,937.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,543,985 : 20,193,457 = 20,193,457 : x
  2. Step 2: Convert to fraction form
    9,543,985/20,193,457 = 20,193,457/x
  3. Step 3: Cross multiply
    9,543,985x = 20,193,457 × 20,193,457
  4. Step 4: Simplify right side
    9,543,985x = 407,775,705,610,849
  5. Step 5: Solve for x
    x = 407,775,705,610,849/9,543,985
  6. Step 6: Final answer
    x = 42,725,937.40

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.