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Finding the Fourth Proportional to 4,721.63, 7,082.73 and 1,434.96

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Solution

The fourth proportional to 4,721.63, 7,082.73 and 1,434.96 is: 2,152.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,721.63 : 7,082.73 = 1,434.96 : x
  2. Step 2: Convert to fraction form
    4,721.63/7,082.73 = 1,434.96/x
  3. Step 3: Cross multiply
    4,721.63x = 7,082.73 × 1,434.96
  4. Step 4: Simplify right side
    4,721.63x = 10,163,434.24
  5. Step 5: Solve for x
    x = 10,163,434.24/4,721.63
  6. Step 6: Final answer
    x = 2,152.53

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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.