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Finding the Fourth Proportional to 18,397.94, 27,455.53 and 16,429.54

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Solution

The fourth proportional to 18,397.94, 27,455.53 and 16,429.54 is: 24,518.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397.94 : 27,455.53 = 16,429.54 : x
  2. Step 2: Convert to fraction form
    18,397.94/27,455.53 = 16,429.54/x
  3. Step 3: Cross multiply
    18,397.94x = 27,455.53 × 16,429.54
  4. Step 4: Simplify right side
    18,397.94x = 451,081,646.21
  5. Step 5: Solve for x
    x = 451,081,646.21/18,397.94
  6. Step 6: Final answer
    x = 24,518.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.