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Finding the Fourth Proportional to 7,416.79, 11,115.77 and 7,223.00

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Solution

The fourth proportional to 7,416.79, 11,115.77 and 7,223.00 is: 10,825.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,416.79 : 11,115.77 = 7,223.00 : x
  2. Step 2: Convert to fraction form
    7,416.79/11,115.77 = 7,223.00/x
  3. Step 3: Cross multiply
    7,416.79x = 11,115.77 × 7,223.00
  4. Step 4: Simplify right side
    7,416.79x = 80,289,115.02
  5. Step 5: Solve for x
    x = 80,289,115.02/7,416.79
  6. Step 6: Final answer
    x = 10,825.32

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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.