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Finding the Fourth Proportional to 4,818.68, 7,216.68 and 2,355.20

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Solution

The fourth proportional to 4,818.68, 7,216.68 and 2,355.20 is: 3,527.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,818.68 : 7,216.68 = 2,355.20 : x
  2. Step 2: Convert to fraction form
    4,818.68/7,216.68 = 2,355.20/x
  3. Step 3: Cross multiply
    4,818.68x = 7,216.68 × 2,355.20
  4. Step 4: Simplify right side
    4,818.68x = 16,996,724.74
  5. Step 5: Solve for x
    x = 16,996,724.74/4,818.68
  6. Step 6: Final answer
    x = 3,527.26

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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.