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Finding the Fourth Proportional to 9,246.54, 12,760.21 and 5,267.65

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Solution

The fourth proportional to 9,246.54, 12,760.21 and 5,267.65 is: 7,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,246.54 : 12,760.21 = 5,267.65 : x
  2. Step 2: Convert to fraction form
    9,246.54/12,760.21 = 5,267.65/x
  3. Step 3: Cross multiply
    9,246.54x = 12,760.21 × 5,267.65
  4. Step 4: Simplify right side
    9,246.54x = 67,216,320.21
  5. Step 5: Solve for x
    x = 67,216,320.21/9,246.54
  6. Step 6: Final answer
    x = 7,269.35

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.