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Finding the Fourth Proportional to 7,328.86, 10,976.28 and 7,274.23

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Solution

The fourth proportional to 7,328.86, 10,976.28 and 7,274.23 is: 10,894.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.86 : 10,976.28 = 7,274.23 : x
  2. Step 2: Convert to fraction form
    7,328.86/10,976.28 = 7,274.23/x
  3. Step 3: Cross multiply
    7,328.86x = 10,976.28 × 7,274.23
  4. Step 4: Simplify right side
    7,328.86x = 79,843,985.26
  5. Step 5: Solve for x
    x = 79,843,985.26/7,328.86
  6. Step 6: Final answer
    x = 10,894.46

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1.5x scale

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.