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Finding the Fourth Proportional to 14,305.62, 21,455.19 and 5,071.62

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Solution

The fourth proportional to 14,305.62, 21,455.19 and 5,071.62 is: 7,606.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,305.62 : 21,455.19 = 5,071.62 : x
  2. Step 2: Convert to fraction form
    14,305.62/21,455.19 = 5,071.62/x
  3. Step 3: Cross multiply
    14,305.62x = 21,455.19 × 5,071.62
  4. Step 4: Simplify right side
    14,305.62x = 108,812,570.71
  5. Step 5: Solve for x
    x = 108,812,570.71/14,305.62
  6. Step 6: Final answer
    x = 7,606.28

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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.