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Finding the Fourth Proportional to 43,990.53, 65,998.08 and 14,429.16

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Solution

The fourth proportional to 43,990.53, 65,998.08 and 14,429.16 is: 21,647.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,990.53 : 65,998.08 = 14,429.16 : x
  2. Step 2: Convert to fraction form
    43,990.53/65,998.08 = 14,429.16/x
  3. Step 3: Cross multiply
    43,990.53x = 65,998.08 × 14,429.16
  4. Step 4: Simplify right side
    43,990.53x = 952,296,856.01
  5. Step 5: Solve for x
    x = 952,296,856.01/43,990.53
  6. Step 6: Final answer
    x = 21,647.77

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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.