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Finding the Fourth Proportional to 43,627.72, 65,447.72 and 14,048.68

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Solution

The fourth proportional to 43,627.72, 65,447.72 and 14,048.68 is: 21,075.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,627.72 : 65,447.72 = 14,048.68 : x
  2. Step 2: Convert to fraction form
    43,627.72/65,447.72 = 14,048.68/x
  3. Step 3: Cross multiply
    43,627.72x = 65,447.72 × 14,048.68
  4. Step 4: Simplify right side
    43,627.72x = 919,454,075.01
  5. Step 5: Solve for x
    x = 919,454,075.01/43,627.72
  6. Step 6: Final answer
    x = 21,075.00

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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.