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Finding the Fourth Proportional to 18,447.40, 27,671.16 and 4,596.40

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Solution

The fourth proportional to 18,447.40, 27,671.16 and 4,596.40 is: 6,894.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.40 : 27,671.16 = 4,596.40 : x
  2. Step 2: Convert to fraction form
    18,447.40/27,671.16 = 4,596.40/x
  3. Step 3: Cross multiply
    18,447.40x = 27,671.16 × 4,596.40
  4. Step 4: Simplify right side
    18,447.40x = 127,187,719.82
  5. Step 5: Solve for x
    x = 127,187,719.82/18,447.40
  6. Step 6: Final answer
    x = 6,894.61

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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.