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Finding the Fourth Proportional to 4,855.16, 6,698.22 and 2,988.92

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Solution

The fourth proportional to 4,855.16, 6,698.22 and 2,988.92 is: 4,123.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.16 : 6,698.22 = 2,988.92 : x
  2. Step 2: Convert to fraction form
    4,855.16/6,698.22 = 2,988.92/x
  3. Step 3: Cross multiply
    4,855.16x = 6,698.22 × 2,988.92
  4. Step 4: Simplify right side
    4,855.16x = 20,020,443.72
  5. Step 5: Solve for x
    x = 20,020,443.72/4,855.16
  6. Step 6: Final answer
    x = 4,123.54

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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.