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Finding the Fourth Proportional to 7,309.92, 10,970.28 and 4,019.64

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Solution

The fourth proportional to 7,309.92, 10,970.28 and 4,019.64 is: 6,032.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,309.92 : 10,970.28 = 4,019.64 : x
  2. Step 2: Convert to fraction form
    7,309.92/10,970.28 = 4,019.64/x
  3. Step 3: Cross multiply
    7,309.92x = 10,970.28 × 4,019.64
  4. Step 4: Simplify right side
    7,309.92x = 44,096,576.30
  5. Step 5: Solve for x
    x = 44,096,576.30/7,309.92
  6. Step 6: Final answer
    x = 6,032.43

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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.