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Finding the Fourth Proportional to 3,592.40, 5,388.60 and 995.12

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Solution

The fourth proportional to 3,592.40, 5,388.60 and 995.12 is: 1,492.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,592.40 : 5,388.60 = 995.12 : x
  2. Step 2: Convert to fraction form
    3,592.40/5,388.60 = 995.12/x
  3. Step 3: Cross multiply
    3,592.40x = 5,388.60 × 995.12
  4. Step 4: Simplify right side
    3,592.40x = 5,362,303.63
  5. Step 5: Solve for x
    x = 5,362,303.63/3,592.40
  6. Step 6: Final answer
    x = 1,492.68

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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.