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Finding the Fourth Proportional to 20,165,486.10, 30,248,229.15 and 20,165,486.10

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Solution

The fourth proportional to 20,165,486.10, 30,248,229.15 and 20,165,486.10 is: 30,248,229.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165,486.10 : 30,248,229.15 = 20,165,486.10 : x
  2. Step 2: Convert to fraction form
    20,165,486.10/30,248,229.15 = 20,165,486.10/x
  3. Step 3: Cross multiply
    20,165,486.10x = 30,248,229.15 × 20,165,486.10
  4. Step 4: Simplify right side
    20,165,486.10x = 609,970,244,473,939.88
  5. Step 5: Solve for x
    x = 609,970,244,473,939.88/20,165,486.10
  6. Step 6: Final answer
    x = 30,248,229.15

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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.