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Finding the Fourth Proportional to 4,895.84, 7,345.20 and 4,208.96

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Solution

The fourth proportional to 4,895.84, 7,345.20 and 4,208.96 is: 6,314.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,895.84 : 7,345.20 = 4,208.96 : x
  2. Step 2: Convert to fraction form
    4,895.84/7,345.20 = 4,208.96/x
  3. Step 3: Cross multiply
    4,895.84x = 7,345.20 × 4,208.96
  4. Step 4: Simplify right side
    4,895.84x = 30,915,652.99
  5. Step 5: Solve for x
    x = 30,915,652.99/4,895.84
  6. Step 6: Final answer
    x = 6,314.68

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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.