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Finding the Fourth Proportional to 18,376.94, 25,365.94 and 10,822.70

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Solution

The fourth proportional to 18,376.94, 25,365.94 and 10,822.70 is: 14,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.94 : 25,365.94 = 10,822.70 : x
  2. Step 2: Convert to fraction form
    18,376.94/25,365.94 = 10,822.70/x
  3. Step 3: Cross multiply
    18,376.94x = 25,365.94 × 10,822.70
  4. Step 4: Simplify right side
    18,376.94x = 274,527,958.84
  5. Step 5: Solve for x
    x = 274,527,958.84/18,376.94
  6. Step 6: Final answer
    x = 14,938.72

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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.