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Finding the Fourth Proportional to 7,511.60, 11,267.40 and 7,025.60

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Solution

The fourth proportional to 7,511.60, 11,267.40 and 7,025.60 is: 10,538.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,511.60 : 11,267.40 = 7,025.60 : x
  2. Step 2: Convert to fraction form
    7,511.60/11,267.40 = 7,025.60/x
  3. Step 3: Cross multiply
    7,511.60x = 11,267.40 × 7,025.60
  4. Step 4: Simplify right side
    7,511.60x = 79,160,245.44
  5. Step 5: Solve for x
    x = 79,160,245.44/7,511.60
  6. Step 6: Final answer
    x = 10,538.40

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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.