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Finding the Fourth Proportional to 14,135.44, 21,212.88 and 4,901.44

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Solution

The fourth proportional to 14,135.44, 21,212.88 and 4,901.44 is: 7,355.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.44 : 21,212.88 = 4,901.44 : x
  2. Step 2: Convert to fraction form
    14,135.44/21,212.88 = 4,901.44/x
  3. Step 3: Cross multiply
    14,135.44x = 21,212.88 × 4,901.44
  4. Step 4: Simplify right side
    14,135.44x = 103,973,658.55
  5. Step 5: Solve for x
    x = 103,973,658.55/14,135.44
  6. Step 6: Final answer
    x = 7,355.53

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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.