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Finding the Fourth Proportional to 7,521.72, 11,283.68 and 2,328

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Solution

The fourth proportional to 7,521.72, 11,283.68 and 2,328 is: 3,492.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,521.72 : 11,283.68 = 2,328 : x
  2. Step 2: Convert to fraction form
    7,521.72/11,283.68 = 2,328/x
  3. Step 3: Cross multiply
    7,521.72x = 11,283.68 × 2,328
  4. Step 4: Simplify right side
    7,521.72x = 26,268,395.40
  5. Step 5: Solve for x
    x = 26,268,395.40/7,521.72
  6. Step 6: Final answer
    x = 3,492.34

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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.