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Finding the Fourth Proportional to 18,351.84, 25,325.01 and 10,394.76

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Solution

The fourth proportional to 18,351.84, 25,325.01 and 10,394.76 is: 14,344.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.84 : 25,325.01 = 10,394.76 : x
  2. Step 2: Convert to fraction form
    18,351.84/25,325.01 = 10,394.76/x
  3. Step 3: Cross multiply
    18,351.84x = 25,325.01 × 10,394.76
  4. Step 4: Simplify right side
    18,351.84x = 263,247,400.95
  5. Step 5: Solve for x
    x = 263,247,400.95/18,351.84
  6. Step 6: Final answer
    x = 14,344.47

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Half scale
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Double scale
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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.