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Finding the Fourth Proportional to 14,326.98, 21,485 and 5,560.76

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Solution

The fourth proportional to 14,326.98, 21,485 and 5,560.76 is: 8,339.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,326.98 : 21,485 = 5,560.76 : x
  2. Step 2: Convert to fraction form
    14,326.98/21,485 = 5,560.76/x
  3. Step 3: Cross multiply
    14,326.98x = 21,485 × 5,560.76
  4. Step 4: Simplify right side
    14,326.98x = 119,472,928.60
  5. Step 5: Solve for x
    x = 119,472,928.60/14,326.98
  6. Step 6: Final answer
    x = 8,339.02

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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.