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Finding the Fourth Proportional to 33,211.69, 49,817.53 and 8,587.69

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Solution

The fourth proportional to 33,211.69, 49,817.53 and 8,587.69 is: 12,881.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,211.69 : 49,817.53 = 8,587.69 : x
  2. Step 2: Convert to fraction form
    33,211.69/49,817.53 = 8,587.69/x
  3. Step 3: Cross multiply
    33,211.69x = 49,817.53 × 8,587.69
  4. Step 4: Simplify right side
    33,211.69x = 427,817,390.40
  5. Step 5: Solve for x
    x = 427,817,390.40/33,211.69
  6. Step 6: Final answer
    x = 12,881.53

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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.