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Finding the Fourth Proportional to 3,295.53, 4,941.85 and 986.49

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Solution

The fourth proportional to 3,295.53, 4,941.85 and 986.49 is: 1,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,295.53 : 4,941.85 = 986.49 : x
  2. Step 2: Convert to fraction form
    3,295.53/4,941.85 = 986.49/x
  3. Step 3: Cross multiply
    3,295.53x = 4,941.85 × 986.49
  4. Step 4: Simplify right side
    3,295.53x = 4,875,055.96
  5. Step 5: Solve for x
    x = 4,875,055.96/3,295.53
  6. Step 6: Final answer
    x = 1,479.30

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Double scale
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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.