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Finding the Fourth Proportional to 28,875.08, 43,315.08 and 8,098.58

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Solution

The fourth proportional to 28,875.08, 43,315.08 and 8,098.58 is: 12,148.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.08 : 43,315.08 = 8,098.58 : x
  2. Step 2: Convert to fraction form
    28,875.08/43,315.08 = 8,098.58/x
  3. Step 3: Cross multiply
    28,875.08x = 43,315.08 × 8,098.58
  4. Step 4: Simplify right side
    28,875.08x = 350,790,640.59
  5. Step 5: Solve for x
    x = 350,790,640.59/28,875.08
  6. Step 6: Final answer
    x = 12,148.56

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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.