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Finding the Fourth Proportional to 21,446.44, 32,173.95 and 7,406.98

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Solution

The fourth proportional to 21,446.44, 32,173.95 and 7,406.98 is: 11,111.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,446.44 : 32,173.95 = 7,406.98 : x
  2. Step 2: Convert to fraction form
    21,446.44/32,173.95 = 7,406.98/x
  3. Step 3: Cross multiply
    21,446.44x = 32,173.95 × 7,406.98
  4. Step 4: Simplify right side
    21,446.44x = 238,311,606.27
  5. Step 5: Solve for x
    x = 238,311,606.27/21,446.44
  6. Step 6: Final answer
    x = 11,111.95

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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.