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Finding the Fourth Proportional to 16,956.18, 23,400.06 and 9,403.20

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Solution

The fourth proportional to 16,956.18, 23,400.06 and 9,403.20 is: 12,976.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,956.18 : 23,400.06 = 9,403.20 : x
  2. Step 2: Convert to fraction form
    16,956.18/23,400.06 = 9,403.20/x
  3. Step 3: Cross multiply
    16,956.18x = 23,400.06 × 9,403.20
  4. Step 4: Simplify right side
    16,956.18x = 220,035,444.19
  5. Step 5: Solve for x
    x = 220,035,444.19/16,956.18
  6. Step 6: Final answer
    x = 12,976.71

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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.