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Finding the Fourth Proportional to 12,347.69, 17,037.18 and 7,313.49

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Solution

The fourth proportional to 12,347.69, 17,037.18 and 7,313.49 is: 10,091.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.69 : 17,037.18 = 7,313.49 : x
  2. Step 2: Convert to fraction form
    12,347.69/17,037.18 = 7,313.49/x
  3. Step 3: Cross multiply
    12,347.69x = 17,037.18 × 7,313.49
  4. Step 4: Simplify right side
    12,347.69x = 124,601,245.56
  5. Step 5: Solve for x
    x = 124,601,245.56/12,347.69
  6. Step 6: Final answer
    x = 10,091.06

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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.