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Finding the Fourth Proportional to 20,242,600.80, 30,363,901.20 and 20,242,600.80

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Solution

The fourth proportional to 20,242,600.80, 30,363,901.20 and 20,242,600.80 is: 30,363,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242,600.80 : 30,363,901.20 = 20,242,600.80 : x
  2. Step 2: Convert to fraction form
    20,242,600.80/30,363,901.20 = 20,242,600.80/x
  3. Step 3: Cross multiply
    20,242,600.80x = 30,363,901.20 × 20,242,600.80
  4. Step 4: Simplify right side
    20,242,600.80x = 614,644,330,722,241
  5. Step 5: Solve for x
    x = 614,644,330,722,241/20,242,600.80
  6. Step 6: Final answer
    x = 30,363,901.20

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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.