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Finding the Fourth Proportional to 4,368.40, 6,553.69 and 1,447.00

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Solution

The fourth proportional to 4,368.40, 6,553.69 and 1,447.00 is: 2,170.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,368.40 : 6,553.69 = 1,447.00 : x
  2. Step 2: Convert to fraction form
    4,368.40/6,553.69 = 1,447.00/x
  3. Step 3: Cross multiply
    4,368.40x = 6,553.69 × 1,447.00
  4. Step 4: Simplify right side
    4,368.40x = 9,483,198.58
  5. Step 5: Solve for x
    x = 9,483,198.58/4,368.40
  6. Step 6: Final answer
    x = 2,170.86

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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.