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Finding the Fourth Proportional to 5,607.72, 8,415.90 and 4,514.76

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Solution

The fourth proportional to 5,607.72, 8,415.90 and 4,514.76 is: 6,775.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.72 : 8,415.90 = 4,514.76 : x
  2. Step 2: Convert to fraction form
    5,607.72/8,415.90 = 4,514.76/x
  3. Step 3: Cross multiply
    5,607.72x = 8,415.90 × 4,514.76
  4. Step 4: Simplify right side
    5,607.72x = 37,995,768.68
  5. Step 5: Solve for x
    x = 37,995,768.68/5,607.72
  6. Step 6: Final answer
    x = 6,775.62

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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.