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Finding the Fourth Proportional to 14,147.53, 21,204.86 and 6,339.94

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Solution

The fourth proportional to 14,147.53, 21,204.86 and 6,339.94 is: 9,502.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.53 : 21,204.86 = 6,339.94 : x
  2. Step 2: Convert to fraction form
    14,147.53/21,204.86 = 6,339.94/x
  3. Step 3: Cross multiply
    14,147.53x = 21,204.86 × 6,339.94
  4. Step 4: Simplify right side
    14,147.53x = 134,437,455.40
  5. Step 5: Solve for x
    x = 134,437,455.40/14,147.53
  6. Step 6: Final answer
    x = 9,502.54

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1.5x scale

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.