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Finding the Fourth Proportional to 14,187.84, 19,573.89 and 8,217.33

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Solution

The fourth proportional to 14,187.84, 19,573.89 and 8,217.33 is: 11,336.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.84 : 19,573.89 = 8,217.33 : x
  2. Step 2: Convert to fraction form
    14,187.84/19,573.89 = 8,217.33/x
  3. Step 3: Cross multiply
    14,187.84x = 19,573.89 × 8,217.33
  4. Step 4: Simplify right side
    14,187.84x = 160,845,113.51
  5. Step 5: Solve for x
    x = 160,845,113.51/14,187.84
  6. Step 6: Final answer
    x = 11,336.83

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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.