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Finding the Fourth Proportional to 7,693.69, 10,617.26 and 4,156.89

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Solution

The fourth proportional to 7,693.69, 10,617.26 and 4,156.89 is: 5,736.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,693.69 : 10,617.26 = 4,156.89 : x
  2. Step 2: Convert to fraction form
    7,693.69/10,617.26 = 4,156.89/x
  3. Step 3: Cross multiply
    7,693.69x = 10,617.26 × 4,156.89
  4. Step 4: Simplify right side
    7,693.69x = 44,134,781.92
  5. Step 5: Solve for x
    x = 44,134,781.92/7,693.69
  6. Step 6: Final answer
    x = 5,736.49

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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.