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Finding the Fourth Proportional to 89,147.87, 133,742.50 and 25,969.49

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Solution

The fourth proportional to 89,147.87, 133,742.50 and 25,969.49 is: 38,960.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,147.87 : 133,742.50 = 25,969.49 : x
  2. Step 2: Convert to fraction form
    89,147.87/133,742.50 = 25,969.49/x
  3. Step 3: Cross multiply
    89,147.87x = 133,742.50 × 25,969.49
  4. Step 4: Simplify right side
    89,147.87x = 3,473,223,782.69
  5. Step 5: Solve for x
    x = 3,473,223,782.69/89,147.87
  6. Step 6: Final answer
    x = 38,960.26

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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.