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Finding the Fourth Proportional to 13,801.58, 20,596.30 and 12,325.28

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Solution

The fourth proportional to 13,801.58, 20,596.30 and 12,325.28 is: 18,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.58 : 20,596.30 = 12,325.28 : x
  2. Step 2: Convert to fraction form
    13,801.58/20,596.30 = 12,325.28/x
  3. Step 3: Cross multiply
    13,801.58x = 20,596.30 × 12,325.28
  4. Step 4: Simplify right side
    13,801.58x = 253,855,164.46
  5. Step 5: Solve for x
    x = 253,855,164.46/13,801.58
  6. Step 6: Final answer
    x = 18,393.20

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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.