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Finding the Fourth Proportional to 12,335.40, 18,492.30 and 11,023.20

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Solution

The fourth proportional to 12,335.40, 18,492.30 and 11,023.20 is: 16,525.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,335.40 : 18,492.30 = 11,023.20 : x
  2. Step 2: Convert to fraction form
    12,335.40/18,492.30 = 11,023.20/x
  3. Step 3: Cross multiply
    12,335.40x = 18,492.30 × 11,023.20
  4. Step 4: Simplify right side
    12,335.40x = 203,844,321.36
  5. Step 5: Solve for x
    x = 203,844,321.36/12,335.40
  6. Step 6: Final answer
    x = 16,525.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.