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Finding the Fourth Proportional to 28,889.46, 43,336.08 and 8,896.50

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Solution

The fourth proportional to 28,889.46, 43,336.08 and 8,896.50 is: 13,345.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,889.46 : 43,336.08 = 8,896.50 : x
  2. Step 2: Convert to fraction form
    28,889.46/43,336.08 = 8,896.50/x
  3. Step 3: Cross multiply
    28,889.46x = 43,336.08 × 8,896.50
  4. Step 4: Simplify right side
    28,889.46x = 385,539,435.72
  5. Step 5: Solve for x
    x = 385,539,435.72/28,889.46
  6. Step 6: Final answer
    x = 13,345.33

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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.