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Finding the Fourth Proportional to 9,252.51, 12,768.69 and 5,274

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Solution

The fourth proportional to 9,252.51, 12,768.69 and 5,274 is: 7,278.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,252.51 : 12,768.69 = 5,274 : x
  2. Step 2: Convert to fraction form
    9,252.51/12,768.69 = 5,274/x
  3. Step 3: Cross multiply
    9,252.51x = 12,768.69 × 5,274
  4. Step 4: Simplify right side
    9,252.51x = 67,342,071.06
  5. Step 5: Solve for x
    x = 67,342,071.06/9,252.51
  6. Step 6: Final answer
    x = 7,278.25

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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.