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Finding the Fourth Proportional to 8,574.48, 12,858.55 and 2,951.01

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Solution

The fourth proportional to 8,574.48, 12,858.55 and 2,951.01 is: 4,425.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.48 : 12,858.55 = 2,951.01 : x
  2. Step 2: Convert to fraction form
    8,574.48/12,858.55 = 2,951.01/x
  3. Step 3: Cross multiply
    8,574.48x = 12,858.55 × 2,951.01
  4. Step 4: Simplify right side
    8,574.48x = 37,945,709.64
  5. Step 5: Solve for x
    x = 37,945,709.64/8,574.48
  6. Step 6: Final answer
    x = 4,425.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.