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Finding the Fourth Proportional to 18,571.58, 25,634.63 and 12,530.60

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Solution

The fourth proportional to 18,571.58, 25,634.63 and 12,530.60 is: 17,296.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,571.58 : 25,634.63 = 12,530.60 : x
  2. Step 2: Convert to fraction form
    18,571.58/25,634.63 = 12,530.60/x
  3. Step 3: Cross multiply
    18,571.58x = 25,634.63 × 12,530.60
  4. Step 4: Simplify right side
    18,571.58x = 321,217,223.48
  5. Step 5: Solve for x
    x = 321,217,223.48/18,571.58
  6. Step 6: Final answer
    x = 17,296.17

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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.