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Finding the Fourth Proportional to 8,469.70, 11,688.75 and 4,693.03

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Solution

The fourth proportional to 8,469.70, 11,688.75 and 4,693.03 is: 6,476.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.70 : 11,688.75 = 4,693.03 : x
  2. Step 2: Convert to fraction form
    8,469.70/11,688.75 = 4,693.03/x
  3. Step 3: Cross multiply
    8,469.70x = 11,688.75 × 4,693.03
  4. Step 4: Simplify right side
    8,469.70x = 54,855,625.19
  5. Step 5: Solve for x
    x = 54,855,625.19/8,469.70
  6. Step 6: Final answer
    x = 6,476.69

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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.