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Finding the Fourth Proportional to 4,995.75, 7,455.63 and 4,442.18

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Solution

The fourth proportional to 4,995.75, 7,455.63 and 4,442.18 is: 6,629.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,995.75 : 7,455.63 = 4,442.18 : x
  2. Step 2: Convert to fraction form
    4,995.75/7,455.63 = 4,442.18/x
  3. Step 3: Cross multiply
    4,995.75x = 7,455.63 × 4,442.18
  4. Step 4: Simplify right side
    4,995.75x = 33,119,250.47
  5. Step 5: Solve for x
    x = 33,119,250.47/4,995.75
  6. Step 6: Final answer
    x = 6,629.49

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