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Finding the Fourth Proportional to 7,224.13, 10,816.72 and 4,719.11

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Solution

The fourth proportional to 7,224.13, 10,816.72 and 4,719.11 is: 7,065.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.13 : 10,816.72 = 4,719.11 : x
  2. Step 2: Convert to fraction form
    7,224.13/10,816.72 = 4,719.11/x
  3. Step 3: Cross multiply
    7,224.13x = 10,816.72 × 4,719.11
  4. Step 4: Simplify right side
    7,224.13x = 51,045,279.72
  5. Step 5: Solve for x
    x = 51,045,279.72/7,224.13
  6. Step 6: Final answer
    x = 7,065.94

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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.