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Finding the Fourth Proportional to 18,223.47, 27,235.36 and 13,303.47

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Solution

The fourth proportional to 18,223.47, 27,235.36 and 13,303.47 is: 19,882.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,223.47 : 27,235.36 = 13,303.47 : x
  2. Step 2: Convert to fraction form
    18,223.47/27,235.36 = 13,303.47/x
  3. Step 3: Cross multiply
    18,223.47x = 27,235.36 × 13,303.47
  4. Step 4: Simplify right side
    18,223.47x = 362,324,761.44
  5. Step 5: Solve for x
    x = 362,324,761.44/18,223.47
  6. Step 6: Final answer
    x = 19,882.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.