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Finding the Fourth Proportional to 5,307.92, 7,961.88 and 2,573.84

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Solution

The fourth proportional to 5,307.92, 7,961.88 and 2,573.84 is: 3,860.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.92 : 7,961.88 = 2,573.84 : x
  2. Step 2: Convert to fraction form
    5,307.92/7,961.88 = 2,573.84/x
  3. Step 3: Cross multiply
    5,307.92x = 7,961.88 × 2,573.84
  4. Step 4: Simplify right side
    5,307.92x = 20,492,605.22
  5. Step 5: Solve for x
    x = 20,492,605.22/5,307.92
  6. Step 6: Final answer
    x = 3,860.76

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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.