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Finding the Fourth Proportional to 18,225.84, 25,152.83 and 13,741.68

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Solution

The fourth proportional to 18,225.84, 25,152.83 and 13,741.68 is: 18,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.84 : 25,152.83 = 13,741.68 : x
  2. Step 2: Convert to fraction form
    18,225.84/25,152.83 = 13,741.68/x
  3. Step 3: Cross multiply
    18,225.84x = 25,152.83 × 13,741.68
  4. Step 4: Simplify right side
    18,225.84x = 345,642,072.25
  5. Step 5: Solve for x
    x = 345,642,072.25/18,225.84
  6. Step 6: Final answer
    x = 18,964.40

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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.