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Finding the Fourth Proportional to 17,872.95, 26,782.09 and 9,554.15

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Solution

The fourth proportional to 17,872.95, 26,782.09 and 9,554.15 is: 14,316.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,872.95 : 26,782.09 = 9,554.15 : x
  2. Step 2: Convert to fraction form
    17,872.95/26,782.09 = 9,554.15/x
  3. Step 3: Cross multiply
    17,872.95x = 26,782.09 × 9,554.15
  4. Step 4: Simplify right side
    17,872.95x = 255,880,105.17
  5. Step 5: Solve for x
    x = 255,880,105.17/17,872.95
  6. Step 6: Final answer
    x = 14,316.61

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1.5x scale

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.