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Finding the Fourth Proportional to 18,668.84, 27,866.68 and 16,454.58

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Solution

The fourth proportional to 18,668.84, 27,866.68 and 16,454.58 is: 24,561.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.84 : 27,866.68 = 16,454.58 : x
  2. Step 2: Convert to fraction form
    18,668.84/27,866.68 = 16,454.58/x
  3. Step 3: Cross multiply
    18,668.84x = 27,866.68 × 16,454.58
  4. Step 4: Simplify right side
    18,668.84x = 458,534,515.39
  5. Step 5: Solve for x
    x = 458,534,515.39/18,668.84
  6. Step 6: Final answer
    x = 24,561.49

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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.