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Finding the Fourth Proportional to 28,108.80, 41,932.80 and 28,108.80

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Solution

The fourth proportional to 28,108.80, 41,932.80 and 28,108.80 is: 41,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108.80 : 41,932.80 = 28,108.80 : x
  2. Step 2: Convert to fraction form
    28,108.80/41,932.80 = 28,108.80/x
  3. Step 3: Cross multiply
    28,108.80x = 41,932.80 × 28,108.80
  4. Step 4: Simplify right side
    28,108.80x = 1,178,680,688.64
  5. Step 5: Solve for x
    x = 1,178,680,688.64/28,108.80
  6. Step 6: Final answer
    x = 41,932.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.