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Finding the Fourth Proportional to 57,215.70, 85,824.35 and 17,770.32

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Solution

The fourth proportional to 57,215.70, 85,824.35 and 17,770.32 is: 26,655.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,215.70 : 85,824.35 = 17,770.32 : x
  2. Step 2: Convert to fraction form
    57,215.70/85,824.35 = 17,770.32/x
  3. Step 3: Cross multiply
    57,215.70x = 85,824.35 × 17,770.32
  4. Step 4: Simplify right side
    57,215.70x = 1,525,126,074.44
  5. Step 5: Solve for x
    x = 1,525,126,074.44/57,215.70
  6. Step 6: Final answer
    x = 26,655.73

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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.