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Finding the Fourth Proportional to 7,392.64, 11,085.16 and 2,460.94

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Solution

The fourth proportional to 7,392.64, 11,085.16 and 2,460.94 is: 3,690.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,392.64 : 11,085.16 = 2,460.94 : x
  2. Step 2: Convert to fraction form
    7,392.64/11,085.16 = 2,460.94/x
  3. Step 3: Cross multiply
    7,392.64x = 11,085.16 × 2,460.94
  4. Step 4: Simplify right side
    7,392.64x = 27,279,913.65
  5. Step 5: Solve for x
    x = 27,279,913.65/7,392.64
  6. Step 6: Final answer
    x = 3,690.15

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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.