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Finding the Fourth Proportional to 3,318.03, 4,975.60 and 1,008.99

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Solution

The fourth proportional to 3,318.03, 4,975.60 and 1,008.99 is: 1,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.03 : 4,975.60 = 1,008.99 : x
  2. Step 2: Convert to fraction form
    3,318.03/4,975.60 = 1,008.99/x
  3. Step 3: Cross multiply
    3,318.03x = 4,975.60 × 1,008.99
  4. Step 4: Simplify right side
    3,318.03x = 5,020,330.64
  5. Step 5: Solve for x
    x = 5,020,330.64/3,318.03
  6. Step 6: Final answer
    x = 1,513.05

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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.