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Finding the Fourth Proportional to 28,884.88, 43,333.80 and 9,164.08

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Solution

The fourth proportional to 28,884.88, 43,333.80 and 9,164.08 is: 13,748.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,884.88 : 43,333.80 = 9,164.08 : x
  2. Step 2: Convert to fraction form
    28,884.88/43,333.80 = 9,164.08/x
  3. Step 3: Cross multiply
    28,884.88x = 43,333.80 × 9,164.08
  4. Step 4: Simplify right side
    28,884.88x = 397,114,409.90
  5. Step 5: Solve for x
    x = 397,114,409.90/28,884.88
  6. Step 6: Final answer
    x = 13,748.18

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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.