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Finding the Fourth Proportional to 38,560.68, 57,845.70 and 10,858.68

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Solution

The fourth proportional to 38,560.68, 57,845.70 and 10,858.68 is: 16,289.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,560.68 : 57,845.70 = 10,858.68 : x
  2. Step 2: Convert to fraction form
    38,560.68/57,845.70 = 10,858.68/x
  3. Step 3: Cross multiply
    38,560.68x = 57,845.70 × 10,858.68
  4. Step 4: Simplify right side
    38,560.68x = 628,127,945.68
  5. Step 5: Solve for x
    x = 628,127,945.68/38,560.68
  6. Step 6: Final answer
    x = 16,289.34

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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.