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Finding the Fourth Proportional to 4,008.96, 5,554.71 and 3,918.24

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Solution

The fourth proportional to 4,008.96, 5,554.71 and 3,918.24 is: 5,429.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,008.96 : 5,554.71 = 3,918.24 : x
  2. Step 2: Convert to fraction form
    4,008.96/5,554.71 = 3,918.24/x
  3. Step 3: Cross multiply
    4,008.96x = 5,554.71 × 3,918.24
  4. Step 4: Simplify right side
    4,008.96x = 21,764,686.91
  5. Step 5: Solve for x
    x = 21,764,686.91/4,008.96
  6. Step 6: Final answer
    x = 5,429.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.