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Finding the Fourth Proportional to 18,797.76, 25,925.58 and 12,083.94

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Solution

The fourth proportional to 18,797.76, 25,925.58 and 12,083.94 is: 16,665.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.76 : 25,925.58 = 12,083.94 : x
  2. Step 2: Convert to fraction form
    18,797.76/25,925.58 = 12,083.94/x
  3. Step 3: Cross multiply
    18,797.76x = 25,925.58 × 12,083.94
  4. Step 4: Simplify right side
    18,797.76x = 313,283,153.19
  5. Step 5: Solve for x
    x = 313,283,153.19/18,797.76
  6. Step 6: Final answer
    x = 16,665.98

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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.