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Finding the Fourth Proportional to 13,612,305.10, 20,418,457.65 and 13,612,305.10

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Solution

The fourth proportional to 13,612,305.10, 20,418,457.65 and 13,612,305.10 is: 20,418,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612,305.10 : 20,418,457.65 = 13,612,305.10 : x
  2. Step 2: Convert to fraction form
    13,612,305.10/20,418,457.65 = 13,612,305.10/x
  3. Step 3: Cross multiply
    13,612,305.10x = 20,418,457.65 × 13,612,305.10
  4. Step 4: Simplify right side
    13,612,305.10x = 277,942,275,203,229
  5. Step 5: Solve for x
    x = 277,942,275,203,229/13,612,305.10
  6. Step 6: Final answer
    x = 20,418,457.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.