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Finding the Fourth Proportional to 7,379.51, 11,047.32 and 7,369.79

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Solution

The fourth proportional to 7,379.51, 11,047.32 and 7,369.79 is: 11,032.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.51 : 11,047.32 = 7,369.79 : x
  2. Step 2: Convert to fraction form
    7,379.51/11,047.32 = 7,369.79/x
  3. Step 3: Cross multiply
    7,379.51x = 11,047.32 × 7,369.79
  4. Step 4: Simplify right side
    7,379.51x = 81,416,373.23
  5. Step 5: Solve for x
    x = 81,416,373.23/7,379.51
  6. Step 6: Final answer
    x = 11,032.77

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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.