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Finding the Fourth Proportional to 14,174.58, 21,255.73 and 4,311.58

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Solution

The fourth proportional to 14,174.58, 21,255.73 and 4,311.58 is: 6,465.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,174.58 : 21,255.73 = 4,311.58 : x
  2. Step 2: Convert to fraction form
    14,174.58/21,255.73 = 4,311.58/x
  3. Step 3: Cross multiply
    14,174.58x = 21,255.73 × 4,311.58
  4. Step 4: Simplify right side
    14,174.58x = 91,645,780.35
  5. Step 5: Solve for x
    x = 91,645,780.35/14,174.58
  6. Step 6: Final answer
    x = 6,465.50

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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.