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Finding the Fourth Proportional to 6,358.79, 9,538.18 and 1,976.24

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Solution

The fourth proportional to 6,358.79, 9,538.18 and 1,976.24 is: 2,964.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,358.79 : 9,538.18 = 1,976.24 : x
  2. Step 2: Convert to fraction form
    6,358.79/9,538.18 = 1,976.24/x
  3. Step 3: Cross multiply
    6,358.79x = 9,538.18 × 1,976.24
  4. Step 4: Simplify right side
    6,358.79x = 18,849,751.75
  5. Step 5: Solve for x
    x = 18,849,751.75/6,358.79
  6. Step 6: Final answer
    x = 2,964.36

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Double scale
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Similar ratio
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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.