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Finding the Fourth Proportional to 12,674.88, 17,491.95 and 7,009.61

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Solution

The fourth proportional to 12,674.88, 17,491.95 and 7,009.61 is: 9,673.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674.88 : 17,491.95 = 7,009.61 : x
  2. Step 2: Convert to fraction form
    12,674.88/17,491.95 = 7,009.61/x
  3. Step 3: Cross multiply
    12,674.88x = 17,491.95 × 7,009.61
  4. Step 4: Simplify right side
    12,674.88x = 122,611,660.18
  5. Step 5: Solve for x
    x = 122,611,660.18/12,674.88
  6. Step 6: Final answer
    x = 9,673.60

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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.