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Finding the Fourth Proportional to 20,246,570.40, 30,369,855.60 and 20,246,570.40

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Solution

The fourth proportional to 20,246,570.40, 30,369,855.60 and 20,246,570.40 is: 30,369,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246,570.40 : 30,369,855.60 = 20,246,570.40 : x
  2. Step 2: Convert to fraction form
    20,246,570.40/30,369,855.60 = 20,246,570.40/x
  3. Step 3: Cross multiply
    20,246,570.40x = 30,369,855.60 × 20,246,570.40
  4. Step 4: Simplify right side
    20,246,570.40x = 614,885,419,443,234.25
  5. Step 5: Solve for x
    x = 614,885,419,443,234.25/20,246,570.40
  6. Step 6: Final answer
    x = 30,369,855.60

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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.