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Finding the Fourth Proportional to 12,463.84, 18,698.64 and 3,698.56

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Solution

The fourth proportional to 12,463.84, 18,698.64 and 3,698.56 is: 5,548.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,463.84 : 18,698.64 = 3,698.56 : x
  2. Step 2: Convert to fraction form
    12,463.84/18,698.64 = 3,698.56/x
  3. Step 3: Cross multiply
    12,463.84x = 18,698.64 × 3,698.56
  4. Step 4: Simplify right side
    12,463.84x = 69,158,041.96
  5. Step 5: Solve for x
    x = 69,158,041.96/12,463.84
  6. Step 6: Final answer
    x = 5,548.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.