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Finding the Fourth Proportional to 12,392.59, 18,574.48 and 4,596.43

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Solution

The fourth proportional to 12,392.59, 18,574.48 and 4,596.43 is: 6,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.59 : 18,574.48 = 4,596.43 : x
  2. Step 2: Convert to fraction form
    12,392.59/18,574.48 = 4,596.43/x
  3. Step 3: Cross multiply
    12,392.59x = 18,574.48 × 4,596.43
  4. Step 4: Simplify right side
    12,392.59x = 85,376,297.11
  5. Step 5: Solve for x
    x = 85,376,297.11/12,392.59
  6. Step 6: Final answer
    x = 6,889.30

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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.