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Finding the Fourth Proportional to 57,057.68, 85,615.68 and 25,888.88

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Solution

The fourth proportional to 57,057.68, 85,615.68 and 25,888.88 is: 38,846.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,057.68 : 85,615.68 = 25,888.88 : x
  2. Step 2: Convert to fraction form
    57,057.68/85,615.68 = 25,888.88/x
  3. Step 3: Cross multiply
    57,057.68x = 85,615.68 × 25,888.88
  4. Step 4: Simplify right side
    57,057.68x = 2,216,494,065.64
  5. Step 5: Solve for x
    x = 2,216,494,065.64/57,057.68
  6. Step 6: Final answer
    x = 38,846.55

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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.