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Finding the Fourth Proportional to 14,429.73, 21,625.46 and 7,409.46

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Solution

The fourth proportional to 14,429.73, 21,625.46 and 7,409.46 is: 11,104.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,429.73 : 21,625.46 = 7,409.46 : x
  2. Step 2: Convert to fraction form
    14,429.73/21,625.46 = 7,409.46/x
  3. Step 3: Cross multiply
    14,429.73x = 21,625.46 × 7,409.46
  4. Step 4: Simplify right side
    14,429.73x = 160,232,980.85
  5. Step 5: Solve for x
    x = 160,232,980.85/14,429.73
  6. Step 6: Final answer
    x = 11,104.36

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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.