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Finding the Fourth Proportional to 17,375.76, 23,959.53 and 12,907.80

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Solution

The fourth proportional to 17,375.76, 23,959.53 and 12,907.80 is: 17,798.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,375.76 : 23,959.53 = 12,907.80 : x
  2. Step 2: Convert to fraction form
    17,375.76/23,959.53 = 12,907.80/x
  3. Step 3: Cross multiply
    17,375.76x = 23,959.53 × 12,907.80
  4. Step 4: Simplify right side
    17,375.76x = 309,264,821.33
  5. Step 5: Solve for x
    x = 309,264,821.33/17,375.76
  6. Step 6: Final answer
    x = 17,798.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.