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Finding the Fourth Proportional to 7,355.16, 11,043.66 and 7,223.94

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Solution

The fourth proportional to 7,355.16, 11,043.66 and 7,223.94 is: 10,846.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,355.16 : 11,043.66 = 7,223.94 : x
  2. Step 2: Convert to fraction form
    7,355.16/11,043.66 = 7,223.94/x
  3. Step 3: Cross multiply
    7,355.16x = 11,043.66 × 7,223.94
  4. Step 4: Simplify right side
    7,355.16x = 79,778,737.22
  5. Step 5: Solve for x
    x = 79,778,737.22/7,355.16
  6. Step 6: Final answer
    x = 10,846.64

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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.