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Finding the Fourth Proportional to 9,674.10, 14,511.15 and 6,390.90

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Solution

The fourth proportional to 9,674.10, 14,511.15 and 6,390.90 is: 9,586.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,674.10 : 14,511.15 = 6,390.90 : x
  2. Step 2: Convert to fraction form
    9,674.10/14,511.15 = 6,390.90/x
  3. Step 3: Cross multiply
    9,674.10x = 14,511.15 × 6,390.90
  4. Step 4: Simplify right side
    9,674.10x = 92,739,308.54
  5. Step 5: Solve for x
    x = 92,739,308.54/9,674.10
  6. Step 6: Final answer
    x = 9,586.35

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