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Finding the Fourth Proportional to 12,329.96, 17,015.36 and 6,740.96

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Solution

The fourth proportional to 12,329.96, 17,015.36 and 6,740.96 is: 9,302.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,329.96 : 17,015.36 = 6,740.96 : x
  2. Step 2: Convert to fraction form
    12,329.96/17,015.36 = 6,740.96/x
  3. Step 3: Cross multiply
    12,329.96x = 17,015.36 × 6,740.96
  4. Step 4: Simplify right side
    12,329.96x = 114,699,861.15
  5. Step 5: Solve for x
    x = 114,699,861.15/12,329.96
  6. Step 6: Final answer
    x = 9,302.53

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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.