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Finding the Fourth Proportional to 5,647.52, 8,472.40 and 1,751.76

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Solution

The fourth proportional to 5,647.52, 8,472.40 and 1,751.76 is: 2,627.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,647.52 : 8,472.40 = 1,751.76 : x
  2. Step 2: Convert to fraction form
    5,647.52/8,472.40 = 1,751.76/x
  3. Step 3: Cross multiply
    5,647.52x = 8,472.40 × 1,751.76
  4. Step 4: Simplify right side
    5,647.52x = 14,841,611.42
  5. Step 5: Solve for x
    x = 14,841,611.42/5,647.52
  6. Step 6: Final answer
    x = 2,627.99

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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.