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Finding the Fourth Proportional to 28,756.56, 39,472.02 and 25,542.48

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Solution

The fourth proportional to 28,756.56, 39,472.02 and 25,542.48 is: 35,060.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.56 : 39,472.02 = 25,542.48 : x
  2. Step 2: Convert to fraction form
    28,756.56/39,472.02 = 25,542.48/x
  3. Step 3: Cross multiply
    28,756.56x = 39,472.02 × 25,542.48
  4. Step 4: Simplify right side
    28,756.56x = 1,008,213,281.41
  5. Step 5: Solve for x
    x = 1,008,213,281.41/28,756.56
  6. Step 6: Final answer
    x = 35,060.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.