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Finding the Fourth Proportional to 25,631.70, 35,796.90 and 25,631.70

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Solution

The fourth proportional to 25,631.70, 35,796.90 and 25,631.70 is: 35,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,631.70 : 35,796.90 = 25,631.70 : x
  2. Step 2: Convert to fraction form
    25,631.70/35,796.90 = 25,631.70/x
  3. Step 3: Cross multiply
    25,631.70x = 35,796.90 × 25,631.70
  4. Step 4: Simplify right side
    25,631.70x = 917,535,401.73
  5. Step 5: Solve for x
    x = 917,535,401.73/25,631.70
  6. Step 6: Final answer
    x = 35,796.90

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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.