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Finding the Fourth Proportional to 7,409.93, 11,062.08 and 7,150.38

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Solution

The fourth proportional to 7,409.93, 11,062.08 and 7,150.38 is: 10,674.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.93 : 11,062.08 = 7,150.38 : x
  2. Step 2: Convert to fraction form
    7,409.93/11,062.08 = 7,150.38/x
  3. Step 3: Cross multiply
    7,409.93x = 11,062.08 × 7,150.38
  4. Step 4: Simplify right side
    7,409.93x = 79,097,998.91
  5. Step 5: Solve for x
    x = 79,097,998.91/7,409.93
  6. Step 6: Final answer
    x = 10,674.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.