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Finding the Fourth Proportional to 18,564.57, 25,619.13 and 11,014.65

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Solution

The fourth proportional to 18,564.57, 25,619.13 and 11,014.65 is: 15,200.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,564.57 : 25,619.13 = 11,014.65 : x
  2. Step 2: Convert to fraction form
    18,564.57/25,619.13 = 11,014.65/x
  3. Step 3: Cross multiply
    18,564.57x = 25,619.13 × 11,014.65
  4. Step 4: Simplify right side
    18,564.57x = 282,185,750.25
  5. Step 5: Solve for x
    x = 282,185,750.25/18,564.57
  6. Step 6: Final answer
    x = 15,200.23

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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.