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Finding the Fourth Proportional to 25,969.77, 35,838.50 and 15,212.25

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Solution

The fourth proportional to 25,969.77, 35,838.50 and 15,212.25 is: 20,993.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,969.77 : 35,838.50 = 15,212.25 : x
  2. Step 2: Convert to fraction form
    25,969.77/35,838.50 = 15,212.25/x
  3. Step 3: Cross multiply
    25,969.77x = 35,838.50 × 15,212.25
  4. Step 4: Simplify right side
    25,969.77x = 545,184,145.56
  5. Step 5: Solve for x
    x = 545,184,145.56/25,969.77
  6. Step 6: Final answer
    x = 20,993.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.