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Finding the Fourth Proportional to 8,503.69, 11,735.14 and 4,727.21

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Solution

The fourth proportional to 8,503.69, 11,735.14 and 4,727.21 is: 6,523.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503.69 : 11,735.14 = 4,727.21 : x
  2. Step 2: Convert to fraction form
    8,503.69/11,735.14 = 4,727.21/x
  3. Step 3: Cross multiply
    8,503.69x = 11,735.14 × 4,727.21
  4. Step 4: Simplify right side
    8,503.69x = 55,474,412.48
  5. Step 5: Solve for x
    x = 55,474,412.48/8,503.69
  6. Step 6: Final answer
    x = 6,523.57

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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.