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Finding the Fourth Proportional to 14,330.76, 19,776.63 and 8,043

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Solution

The fourth proportional to 14,330.76, 19,776.63 and 8,043 is: 11,099.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,330.76 : 19,776.63 = 8,043 : x
  2. Step 2: Convert to fraction form
    14,330.76/19,776.63 = 8,043/x
  3. Step 3: Cross multiply
    14,330.76x = 19,776.63 × 8,043
  4. Step 4: Simplify right side
    14,330.76x = 159,063,435.09
  5. Step 5: Solve for x
    x = 159,063,435.09/14,330.76
  6. Step 6: Final answer
    x = 11,099.44

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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.