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Finding the Fourth Proportional to 25,666,563.80, 38,499,845.70 and 25,489,616.60

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Solution

The fourth proportional to 25,666,563.80, 38,499,845.70 and 25,489,616.60 is: 38,234,424.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,666,563.80 : 38,499,845.70 = 25,489,616.60 : x
  2. Step 2: Convert to fraction form
    25,666,563.80/38,499,845.70 = 25,489,616.60/x
  3. Step 3: Cross multiply
    25,666,563.80x = 38,499,845.70 × 25,489,616.60
  4. Step 4: Simplify right side
    25,666,563.80x = 981,346,306,052,158.75
  5. Step 5: Solve for x
    x = 981,346,306,052,158.75/25,666,563.80
  6. Step 6: Final answer
    x = 38,234,424.90

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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.