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Finding the Fourth Proportional to 7,328.40, 10,976.40 and 6,032.40

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Solution

The fourth proportional to 7,328.40, 10,976.40 and 6,032.40 is: 9,035.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.40 : 10,976.40 = 6,032.40 : x
  2. Step 2: Convert to fraction form
    7,328.40/10,976.40 = 6,032.40/x
  3. Step 3: Cross multiply
    7,328.40x = 10,976.40 × 6,032.40
  4. Step 4: Simplify right side
    7,328.40x = 66,214,035.36
  5. Step 5: Solve for x
    x = 66,214,035.36/7,328.40
  6. Step 6: Final answer
    x = 9,035.26

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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.