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Finding the Fourth Proportional to 4,367.84, 6,518.22 and 3,900.74

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Solution

The fourth proportional to 4,367.84, 6,518.22 and 3,900.74 is: 5,821.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,367.84 : 6,518.22 = 3,900.74 : x
  2. Step 2: Convert to fraction form
    4,367.84/6,518.22 = 3,900.74/x
  3. Step 3: Cross multiply
    4,367.84x = 6,518.22 × 3,900.74
  4. Step 4: Simplify right side
    4,367.84x = 25,425,881.48
  5. Step 5: Solve for x
    x = 25,425,881.48/4,367.84
  6. Step 6: Final answer
    x = 5,821.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.