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Finding the Fourth Proportional to 28,806.76, 39,754.02 and 16,059.88

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Solution

The fourth proportional to 28,806.76, 39,754.02 and 16,059.88 is: 22,163.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806.76 : 39,754.02 = 16,059.88 : x
  2. Step 2: Convert to fraction form
    28,806.76/39,754.02 = 16,059.88/x
  3. Step 3: Cross multiply
    28,806.76x = 39,754.02 × 16,059.88
  4. Step 4: Simplify right side
    28,806.76x = 638,444,790.72
  5. Step 5: Solve for x
    x = 638,444,790.72/28,806.76
  6. Step 6: Final answer
    x = 22,163.02

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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.