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Finding the Fourth Proportional to 18,333, 25,299.54 and 12,056.58

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Solution

The fourth proportional to 18,333, 25,299.54 and 12,056.58 is: 16,638.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,333 : 25,299.54 = 12,056.58 : x
  2. Step 2: Convert to fraction form
    18,333/25,299.54 = 12,056.58/x
  3. Step 3: Cross multiply
    18,333x = 25,299.54 × 12,056.58
  4. Step 4: Simplify right side
    18,333x = 305,025,927.97
  5. Step 5: Solve for x
    x = 305,025,927.97/18,333
  6. Step 6: Final answer
    x = 16,638.08

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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.