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Finding the Fourth Proportional to 4,755.96, 7,133.92 and 1,293.20

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Solution

The fourth proportional to 4,755.96, 7,133.92 and 1,293.20 is: 1,939.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.96 : 7,133.92 = 1,293.20 : x
  2. Step 2: Convert to fraction form
    4,755.96/7,133.92 = 1,293.20/x
  3. Step 3: Cross multiply
    4,755.96x = 7,133.92 × 1,293.20
  4. Step 4: Simplify right side
    4,755.96x = 9,225,585.34
  5. Step 5: Solve for x
    x = 9,225,585.34/4,755.96
  6. Step 6: Final answer
    x = 1,939.79

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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.