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Finding the Fourth Proportional to 6,873.81, 9,485.28 and 4,041.28

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Solution

The fourth proportional to 6,873.81, 9,485.28 and 4,041.28 is: 5,576.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,873.81 : 9,485.28 = 4,041.28 : x
  2. Step 2: Convert to fraction form
    6,873.81/9,485.28 = 4,041.28/x
  3. Step 3: Cross multiply
    6,873.81x = 9,485.28 × 4,041.28
  4. Step 4: Simplify right side
    6,873.81x = 38,332,624.93
  5. Step 5: Solve for x
    x = 38,332,624.93/6,873.81
  6. Step 6: Final answer
    x = 5,576.62

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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.