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Finding the Fourth Proportional to 4,855.58, 6,699.63 and 2,864.78

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Solution

The fourth proportional to 4,855.58, 6,699.63 and 2,864.78 is: 3,952.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.58 : 6,699.63 = 2,864.78 : x
  2. Step 2: Convert to fraction form
    4,855.58/6,699.63 = 2,864.78/x
  3. Step 3: Cross multiply
    4,855.58x = 6,699.63 × 2,864.78
  4. Step 4: Simplify right side
    4,855.58x = 19,192,966.03
  5. Step 5: Solve for x
    x = 19,192,966.03/4,855.58
  6. Step 6: Final answer
    x = 3,952.76

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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.