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Finding the Fourth Proportional to 12,572.99, 17,349.89 and 6,906.63

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Solution

The fourth proportional to 12,572.99, 17,349.89 and 6,906.63 is: 9,530.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572.99 : 17,349.89 = 6,906.63 : x
  2. Step 2: Convert to fraction form
    12,572.99/17,349.89 = 6,906.63/x
  3. Step 3: Cross multiply
    12,572.99x = 17,349.89 × 6,906.63
  4. Step 4: Simplify right side
    12,572.99x = 119,829,236.24
  5. Step 5: Solve for x
    x = 119,829,236.24/12,572.99
  6. Step 6: Final answer
    x = 9,530.69

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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.