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Finding the Fourth Proportional to 9,375.58, 12,937.89 and 5,126.53

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Solution

The fourth proportional to 9,375.58, 12,937.89 and 5,126.53 is: 7,074.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,375.58 : 12,937.89 = 5,126.53 : x
  2. Step 2: Convert to fraction form
    9,375.58/12,937.89 = 5,126.53/x
  3. Step 3: Cross multiply
    9,375.58x = 12,937.89 × 5,126.53
  4. Step 4: Simplify right side
    9,375.58x = 66,326,481.22
  5. Step 5: Solve for x
    x = 66,326,481.22/9,375.58
  6. Step 6: Final answer
    x = 7,074.39

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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.