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Finding the Fourth Proportional to 14,462, 21,690.60 and 4,071.44

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Solution

The fourth proportional to 14,462, 21,690.60 and 4,071.44 is: 6,106.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,462 : 21,690.60 = 4,071.44 : x
  2. Step 2: Convert to fraction form
    14,462/21,690.60 = 4,071.44/x
  3. Step 3: Cross multiply
    14,462x = 21,690.60 × 4,071.44
  4. Step 4: Simplify right side
    14,462x = 88,311,976.46
  5. Step 5: Solve for x
    x = 88,311,976.46/14,462
  6. Step 6: Final answer
    x = 6,106.48

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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.