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Finding the Fourth Proportional to 12,572.68, 18,866.97 and 7,029.67

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Solution

The fourth proportional to 12,572.68, 18,866.97 and 7,029.67 is: 10,548.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572.68 : 18,866.97 = 7,029.67 : x
  2. Step 2: Convert to fraction form
    12,572.68/18,866.97 = 7,029.67/x
  3. Step 3: Cross multiply
    12,572.68x = 18,866.97 × 7,029.67
  4. Step 4: Simplify right side
    12,572.68x = 132,628,573.00
  5. Step 5: Solve for x
    x = 132,628,573.00/12,572.68
  6. Step 6: Final answer
    x = 10,548.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.