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Finding the Fourth Proportional to 7,222.59, 10,811.19 and 7,054.11

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Solution

The fourth proportional to 7,222.59, 10,811.19 and 7,054.11 is: 10,559.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.59 : 10,811.19 = 7,054.11 : x
  2. Step 2: Convert to fraction form
    7,222.59/10,811.19 = 7,054.11/x
  3. Step 3: Cross multiply
    7,222.59x = 10,811.19 × 7,054.11
  4. Step 4: Simplify right side
    7,222.59x = 76,263,323.49
  5. Step 5: Solve for x
    x = 76,263,323.49/7,222.59
  6. Step 6: Final answer
    x = 10,559.00

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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.