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Finding the Fourth Proportional to 4,612.84, 6,363.84 and 3,216.40

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Solution

The fourth proportional to 4,612.84, 6,363.84 and 3,216.40 is: 4,437.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,612.84 : 6,363.84 = 3,216.40 : x
  2. Step 2: Convert to fraction form
    4,612.84/6,363.84 = 3,216.40/x
  3. Step 3: Cross multiply
    4,612.84x = 6,363.84 × 3,216.40
  4. Step 4: Simplify right side
    4,612.84x = 20,468,654.98
  5. Step 5: Solve for x
    x = 20,468,654.98/4,612.84
  6. Step 6: Final answer
    x = 4,437.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.