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Finding the Fourth Proportional to 19,596.42, 27,039.90 and 12,040.32

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Solution

The fourth proportional to 19,596.42, 27,039.90 and 12,040.32 is: 16,613.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,596.42 : 27,039.90 = 12,040.32 : x
  2. Step 2: Convert to fraction form
    19,596.42/27,039.90 = 12,040.32/x
  3. Step 3: Cross multiply
    19,596.42x = 27,039.90 × 12,040.32
  4. Step 4: Simplify right side
    19,596.42x = 325,569,048.77
  5. Step 5: Solve for x
    x = 325,569,048.77/19,596.42
  6. Step 6: Final answer
    x = 16,613.70

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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.