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Finding the Fourth Proportional to 12,392.64, 18,597.06 and 11,572.65

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Solution

The fourth proportional to 12,392.64, 18,597.06 and 11,572.65 is: 17,366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.64 : 18,597.06 = 11,572.65 : x
  2. Step 2: Convert to fraction form
    12,392.64/18,597.06 = 11,572.65/x
  3. Step 3: Cross multiply
    12,392.64x = 18,597.06 × 11,572.65
  4. Step 4: Simplify right side
    12,392.64x = 215,217,266.41
  5. Step 5: Solve for x
    x = 215,217,266.41/12,392.64
  6. Step 6: Final answer
    x = 17,366.54

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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.