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Finding the Fourth Proportional to 4,742.07, 7,113.14 and 3,108.96

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Solution

The fourth proportional to 4,742.07, 7,113.14 and 3,108.96 is: 4,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.07 : 7,113.14 = 3,108.96 : x
  2. Step 2: Convert to fraction form
    4,742.07/7,113.14 = 3,108.96/x
  3. Step 3: Cross multiply
    4,742.07x = 7,113.14 × 3,108.96
  4. Step 4: Simplify right side
    4,742.07x = 22,114,467.73
  5. Step 5: Solve for x
    x = 22,114,467.73/4,742.07
  6. Step 6: Final answer
    x = 4,663.46

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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.