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Finding the Fourth Proportional to 18,247.88, 25,182 and 11,075.32

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Solution

The fourth proportional to 18,247.88, 25,182 and 11,075.32 is: 15,283.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,247.88 : 25,182 = 11,075.32 : x
  2. Step 2: Convert to fraction form
    18,247.88/25,182 = 11,075.32/x
  3. Step 3: Cross multiply
    18,247.88x = 25,182 × 11,075.32
  4. Step 4: Simplify right side
    18,247.88x = 278,898,708.24
  5. Step 5: Solve for x
    x = 278,898,708.24/18,247.88
  6. Step 6: Final answer
    x = 15,283.90

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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.