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Finding the Fourth Proportional to 43,863.72, 65,780.04 and 14,276.04

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Solution

The fourth proportional to 43,863.72, 65,780.04 and 14,276.04 is: 21,409.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,863.72 : 65,780.04 = 14,276.04 : x
  2. Step 2: Convert to fraction form
    43,863.72/65,780.04 = 14,276.04/x
  3. Step 3: Cross multiply
    43,863.72x = 65,780.04 × 14,276.04
  4. Step 4: Simplify right side
    43,863.72x = 939,078,482.24
  5. Step 5: Solve for x
    x = 939,078,482.24/43,863.72
  6. Step 6: Final answer
    x = 21,409.00

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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.