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Finding the Fourth Proportional to 20,352,002.20, 28,568,385.80 and 20,352,002.20

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Solution

The fourth proportional to 20,352,002.20, 28,568,385.80 and 20,352,002.20 is: 28,568,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,352,002.20 : 28,568,385.80 = 20,352,002.20 : x
  2. Step 2: Convert to fraction form
    20,352,002.20/28,568,385.80 = 20,352,002.20/x
  3. Step 3: Cross multiply
    20,352,002.20x = 28,568,385.80 × 20,352,002.20
  4. Step 4: Simplify right side
    20,352,002.20x = 581,423,850,652,048.75
  5. Step 5: Solve for x
    x = 581,423,850,652,048.75/20,352,002.20
  6. Step 6: Final answer
    x = 28,568,385.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.