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Finding the Fourth Proportional to 3,328.96, 4,984.80 and 3,246.40

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Solution

The fourth proportional to 3,328.96, 4,984.80 and 3,246.40 is: 4,861.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,328.96 : 4,984.80 = 3,246.40 : x
  2. Step 2: Convert to fraction form
    3,328.96/4,984.80 = 3,246.40/x
  3. Step 3: Cross multiply
    3,328.96x = 4,984.80 × 3,246.40
  4. Step 4: Simplify right side
    3,328.96x = 16,182,654.72
  5. Step 5: Solve for x
    x = 16,182,654.72/3,328.96
  6. Step 6: Final answer
    x = 4,861.17

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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.