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Finding the Fourth Proportional to 3,648.70, 5,473.08 and 1,051.72

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Solution

The fourth proportional to 3,648.70, 5,473.08 and 1,051.72 is: 1,577.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,648.70 : 5,473.08 = 1,051.72 : x
  2. Step 2: Convert to fraction form
    3,648.70/5,473.08 = 1,051.72/x
  3. Step 3: Cross multiply
    3,648.70x = 5,473.08 × 1,051.72
  4. Step 4: Simplify right side
    3,648.70x = 5,756,147.70
  5. Step 5: Solve for x
    x = 5,756,147.70/3,648.70
  6. Step 6: Final answer
    x = 1,577.59

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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.