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Finding the Fourth Proportional to 25,500.80, 35,208.05 and 15,955.08

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Solution

The fourth proportional to 25,500.80, 35,208.05 and 15,955.08 is: 22,028.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,500.80 : 35,208.05 = 15,955.08 : x
  2. Step 2: Convert to fraction form
    25,500.80/35,208.05 = 15,955.08/x
  3. Step 3: Cross multiply
    25,500.80x = 35,208.05 × 15,955.08
  4. Step 4: Simplify right side
    25,500.80x = 561,747,174.62
  5. Step 5: Solve for x
    x = 561,747,174.62/25,500.80
  6. Step 6: Final answer
    x = 22,028.61

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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.