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Finding the Fourth Proportional to 7,423.43, 11,069.64 and 7,356.77

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Solution

The fourth proportional to 7,423.43, 11,069.64 and 7,356.77 is: 10,970.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,423.43 : 11,069.64 = 7,356.77 : x
  2. Step 2: Convert to fraction form
    7,423.43/11,069.64 = 7,356.77/x
  3. Step 3: Cross multiply
    7,423.43x = 11,069.64 × 7,356.77
  4. Step 4: Simplify right side
    7,423.43x = 81,436,758.68
  5. Step 5: Solve for x
    x = 81,436,758.68/7,423.43
  6. Step 6: Final answer
    x = 10,970.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.