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Finding the Fourth Proportional to 4,855.61, 6,700.46 and 2,866.79

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Solution

The fourth proportional to 4,855.61, 6,700.46 and 2,866.79 is: 3,956.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.61 : 6,700.46 = 2,866.79 : x
  2. Step 2: Convert to fraction form
    4,855.61/6,700.46 = 2,866.79/x
  3. Step 3: Cross multiply
    4,855.61x = 6,700.46 × 2,866.79
  4. Step 4: Simplify right side
    4,855.61x = 19,208,814.14
  5. Step 5: Solve for x
    x = 19,208,814.14/4,855.61
  6. Step 6: Final answer
    x = 3,956.00

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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.