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Finding the Fourth Proportional to 4,829.76, 7,238.52 and 2,750.76

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Solution

The fourth proportional to 4,829.76, 7,238.52 and 2,750.76 is: 4,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,829.76 : 7,238.52 = 2,750.76 : x
  2. Step 2: Convert to fraction form
    4,829.76/7,238.52 = 2,750.76/x
  3. Step 3: Cross multiply
    4,829.76x = 7,238.52 × 2,750.76
  4. Step 4: Simplify right side
    4,829.76x = 19,911,431.28
  5. Step 5: Solve for x
    x = 19,911,431.28/4,829.76
  6. Step 6: Final answer
    x = 4,122.65

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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.