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Finding the Fourth Proportional to 7,969.93, 11,945.66 and 7,047.29

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Solution

The fourth proportional to 7,969.93, 11,945.66 and 7,047.29 is: 10,562.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.93 : 11,945.66 = 7,047.29 : x
  2. Step 2: Convert to fraction form
    7,969.93/11,945.66 = 7,047.29/x
  3. Step 3: Cross multiply
    7,969.93x = 11,945.66 × 7,047.29
  4. Step 4: Simplify right side
    7,969.93x = 84,184,530.26
  5. Step 5: Solve for x
    x = 84,184,530.26/7,969.93
  6. Step 6: Final answer
    x = 10,562.77

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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.