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Finding the Fourth Proportional to 17,290.55, 25,894.25 and 9,872.53

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Solution

The fourth proportional to 17,290.55, 25,894.25 and 9,872.53 is: 14,785.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,290.55 : 25,894.25 = 9,872.53 : x
  2. Step 2: Convert to fraction form
    17,290.55/25,894.25 = 9,872.53/x
  3. Step 3: Cross multiply
    17,290.55x = 25,894.25 × 9,872.53
  4. Step 4: Simplify right side
    17,290.55x = 255,641,581.12
  5. Step 5: Solve for x
    x = 255,641,581.12/17,290.55
  6. Step 6: Final answer
    x = 14,785.05

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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.