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Finding the Fourth Proportional to 7,953.72, 10,979.67 and 6,065.43

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Solution

The fourth proportional to 7,953.72, 10,979.67 and 6,065.43 is: 8,372.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,953.72 : 10,979.67 = 6,065.43 : x
  2. Step 2: Convert to fraction form
    7,953.72/10,979.67 = 6,065.43/x
  3. Step 3: Cross multiply
    7,953.72x = 10,979.67 × 6,065.43
  4. Step 4: Simplify right side
    7,953.72x = 66,596,419.81
  5. Step 5: Solve for x
    x = 66,596,419.81/7,953.72
  6. Step 6: Final answer
    x = 8,372.99

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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.