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Finding the Fourth Proportional to 4,995.98, 7,493.93 and 1,298.20

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Solution

The fourth proportional to 4,995.98, 7,493.93 and 1,298.20 is: 1,947.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,995.98 : 7,493.93 = 1,298.20 : x
  2. Step 2: Convert to fraction form
    4,995.98/7,493.93 = 1,298.20/x
  3. Step 3: Cross multiply
    4,995.98x = 7,493.93 × 1,298.20
  4. Step 4: Simplify right side
    4,995.98x = 9,728,582.46
  5. Step 5: Solve for x
    x = 9,728,582.46/4,995.98
  6. Step 6: Final answer
    x = 1,947.28

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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.