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Finding the Fourth Proportional to 7,305.85, 10,945.81 and 4,986.01

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Solution

The fourth proportional to 7,305.85, 10,945.81 and 4,986.01 is: 7,470.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.85 : 10,945.81 = 4,986.01 : x
  2. Step 2: Convert to fraction form
    7,305.85/10,945.81 = 4,986.01/x
  3. Step 3: Cross multiply
    7,305.85x = 10,945.81 × 4,986.01
  4. Step 4: Simplify right side
    7,305.85x = 54,575,918.12
  5. Step 5: Solve for x
    x = 54,575,918.12/7,305.85
  6. Step 6: Final answer
    x = 7,470.17

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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.