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Finding the Fourth Proportional to 12,502.14, 17,249.94 and 7,783.08

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Solution

The fourth proportional to 12,502.14, 17,249.94 and 7,783.08 is: 10,738.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,502.14 : 17,249.94 = 7,783.08 : x
  2. Step 2: Convert to fraction form
    12,502.14/17,249.94 = 7,783.08/x
  3. Step 3: Cross multiply
    12,502.14x = 17,249.94 × 7,783.08
  4. Step 4: Simplify right side
    12,502.14x = 134,257,663.02
  5. Step 5: Solve for x
    x = 134,257,663.02/12,502.14
  6. Step 6: Final answer
    x = 10,738.77

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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.