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Finding the Fourth Proportional to 43,623.16, 65,428.44 and 14,037.16

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Solution

The fourth proportional to 43,623.16, 65,428.44 and 14,037.16 is: 21,053.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,623.16 : 65,428.44 = 14,037.16 : x
  2. Step 2: Convert to fraction form
    43,623.16/65,428.44 = 14,037.16/x
  3. Step 3: Cross multiply
    43,623.16x = 65,428.44 × 14,037.16
  4. Step 4: Simplify right side
    43,623.16x = 918,429,480.83
  5. Step 5: Solve for x
    x = 918,429,480.83/43,623.16
  6. Step 6: Final answer
    x = 21,053.71

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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.