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Finding the Third Proportional to 9,570,205 and 21,000,438

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Solution

The third proportional to 9,570,205 and 21,000,438 is: 46,082,439.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,570,205 : 21,000,438 = 21,000,438 : x
  2. Step 2: Convert to fraction form
    9,570,205/21,000,438 = 21,000,438/x
  3. Step 3: Cross multiply
    9,570,205x = 21,000,438 × 21,000,438
  4. Step 4: Simplify right side
    9,570,205x = 441,018,396,191,844
  5. Step 5: Solve for x
    x = 441,018,396,191,844/9,570,205
  6. Step 6: Final answer
    x = 46,082,439.84

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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.