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Finding the Fourth Proportional to 7,661.70, 11,496.60 and 3,502.35

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Solution

The fourth proportional to 7,661.70, 11,496.60 and 3,502.35 is: 5,255.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661.70 : 11,496.60 = 3,502.35 : x
  2. Step 2: Convert to fraction form
    7,661.70/11,496.60 = 3,502.35/x
  3. Step 3: Cross multiply
    7,661.70x = 11,496.60 × 3,502.35
  4. Step 4: Simplify right side
    7,661.70x = 40,265,117.01
  5. Step 5: Solve for x
    x = 40,265,117.01/7,661.70
  6. Step 6: Final answer
    x = 5,255.38

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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.