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Finding the Fourth Proportional to 14,443.68, 21,663.09 and 4,053

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Solution

The fourth proportional to 14,443.68, 21,663.09 and 4,053 is: 6,078.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,443.68 : 21,663.09 = 4,053 : x
  2. Step 2: Convert to fraction form
    14,443.68/21,663.09 = 4,053/x
  3. Step 3: Cross multiply
    14,443.68x = 21,663.09 × 4,053
  4. Step 4: Simplify right side
    14,443.68x = 87,800,503.77
  5. Step 5: Solve for x
    x = 87,800,503.77/14,443.68
  6. Step 6: Final answer
    x = 6,078.82

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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.