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Finding the Fourth Proportional to 14,482.80, 21,677.04 and 7,892.64

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Solution

The fourth proportional to 14,482.80, 21,677.04 and 7,892.64 is: 11,813.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,482.80 : 21,677.04 = 7,892.64 : x
  2. Step 2: Convert to fraction form
    14,482.80/21,677.04 = 7,892.64/x
  3. Step 3: Cross multiply
    14,482.80x = 21,677.04 × 7,892.64
  4. Step 4: Simplify right side
    14,482.80x = 171,089,072.99
  5. Step 5: Solve for x
    x = 171,089,072.99/14,482.80
  6. Step 6: Final answer
    x = 11,813.26

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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.