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Finding the Fourth Proportional to 15,128.58, 22,696.11 and 6,358.44

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Solution

The fourth proportional to 15,128.58, 22,696.11 and 6,358.44 is: 9,539.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.58 : 22,696.11 = 6,358.44 : x
  2. Step 2: Convert to fraction form
    15,128.58/22,696.11 = 6,358.44/x
  3. Step 3: Cross multiply
    15,128.58x = 22,696.11 × 6,358.44
  4. Step 4: Simplify right side
    15,128.58x = 144,311,853.67
  5. Step 5: Solve for x
    x = 144,311,853.67/15,128.58
  6. Step 6: Final answer
    x = 9,539.02

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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.