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Finding the Fourth Proportional to 18,473.94, 25,479.63 and 16,351.74

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Solution

The fourth proportional to 18,473.94, 25,479.63 and 16,351.74 is: 22,552.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,473.94 : 25,479.63 = 16,351.74 : x
  2. Step 2: Convert to fraction form
    18,473.94/25,479.63 = 16,351.74/x
  3. Step 3: Cross multiply
    18,473.94x = 25,479.63 × 16,351.74
  4. Step 4: Simplify right side
    18,473.94x = 416,636,285.06
  5. Step 5: Solve for x
    x = 416,636,285.06/18,473.94
  6. Step 6: Final answer
    x = 22,552.65

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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.