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Finding the Fourth Proportional to 17,188.25, 25,786.70 and 4,876.25

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Solution

The fourth proportional to 17,188.25, 25,786.70 and 4,876.25 is: 7,315.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,188.25 : 25,786.70 = 4,876.25 : x
  2. Step 2: Convert to fraction form
    17,188.25/25,786.70 = 4,876.25/x
  3. Step 3: Cross multiply
    17,188.25x = 25,786.70 × 4,876.25
  4. Step 4: Simplify right side
    17,188.25x = 125,742,371.49
  5. Step 5: Solve for x
    x = 125,742,371.49/17,188.25
  6. Step 6: Final answer
    x = 7,315.60

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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.