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Finding the Fourth Proportional to 14,404.64, 21,605.04 and 4,015.52

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Solution

The fourth proportional to 14,404.64, 21,605.04 and 4,015.52 is: 6,022.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,404.64 : 21,605.04 = 4,015.52 : x
  2. Step 2: Convert to fraction form
    14,404.64/21,605.04 = 4,015.52/x
  3. Step 3: Cross multiply
    14,404.64x = 21,605.04 × 4,015.52
  4. Step 4: Simplify right side
    14,404.64x = 86,755,470.22
  5. Step 5: Solve for x
    x = 86,755,470.22/14,404.64
  6. Step 6: Final answer
    x = 6,022.74

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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.