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Finding the Fourth Proportional to 17,289.84, 25,900.68 and 8,975.28

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Solution

The fourth proportional to 17,289.84, 25,900.68 and 8,975.28 is: 13,445.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,289.84 : 25,900.68 = 8,975.28 : x
  2. Step 2: Convert to fraction form
    17,289.84/25,900.68 = 8,975.28/x
  3. Step 3: Cross multiply
    17,289.84x = 25,900.68 × 8,975.28
  4. Step 4: Simplify right side
    17,289.84x = 232,465,855.19
  5. Step 5: Solve for x
    x = 232,465,855.19/17,289.84
  6. Step 6: Final answer
    x = 13,445.23

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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.