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Finding the Fourth Proportional to 13,009.76, 17,934.69 and 8,525.73

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Solution

The fourth proportional to 13,009.76, 17,934.69 and 8,525.73 is: 11,753.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.76 : 17,934.69 = 8,525.73 : x
  2. Step 2: Convert to fraction form
    13,009.76/17,934.69 = 8,525.73/x
  3. Step 3: Cross multiply
    13,009.76x = 17,934.69 × 8,525.73
  4. Step 4: Simplify right side
    13,009.76x = 152,906,322.92
  5. Step 5: Solve for x
    x = 152,906,322.92/13,009.76
  6. Step 6: Final answer
    x = 11,753.20

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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.