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Finding the Fourth Proportional to 22,326.96, 30,811.52 and 12,256.40

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Solution

The fourth proportional to 22,326.96, 30,811.52 and 12,256.40 is: 16,914.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,326.96 : 30,811.52 = 12,256.40 : x
  2. Step 2: Convert to fraction form
    22,326.96/30,811.52 = 12,256.40/x
  3. Step 3: Cross multiply
    22,326.96x = 30,811.52 × 12,256.40
  4. Step 4: Simplify right side
    22,326.96x = 377,638,313.73
  5. Step 5: Solve for x
    x = 377,638,313.73/22,326.96
  6. Step 6: Final answer
    x = 16,914.01

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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.