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Finding the Fourth Proportional to 18,801.42, 25,932.16 and 13,501.68

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Solution

The fourth proportional to 18,801.42, 25,932.16 and 13,501.68 is: 18,622.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801.42 : 25,932.16 = 13,501.68 : x
  2. Step 2: Convert to fraction form
    18,801.42/25,932.16 = 13,501.68/x
  3. Step 3: Cross multiply
    18,801.42x = 25,932.16 × 13,501.68
  4. Step 4: Simplify right side
    18,801.42x = 350,127,726.03
  5. Step 5: Solve for x
    x = 350,127,726.03/18,801.42
  6. Step 6: Final answer
    x = 18,622.41

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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.