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Finding the Fourth Proportional to 9,231.93, 12,740.99 and 5,505.93

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Solution

The fourth proportional to 9,231.93, 12,740.99 and 5,505.93 is: 7,598.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,231.93 : 12,740.99 = 5,505.93 : x
  2. Step 2: Convert to fraction form
    9,231.93/12,740.99 = 5,505.93/x
  3. Step 3: Cross multiply
    9,231.93x = 12,740.99 × 5,505.93
  4. Step 4: Simplify right side
    9,231.93x = 70,150,971.54
  5. Step 5: Solve for x
    x = 70,150,971.54/9,231.93
  6. Step 6: Final answer
    x = 7,598.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.