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Finding the Fourth Proportional to 28,042.93, 42,064.52 and 6,982.94

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Solution

The fourth proportional to 28,042.93, 42,064.52 and 6,982.94 is: 10,474.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.93 : 42,064.52 = 6,982.94 : x
  2. Step 2: Convert to fraction form
    28,042.93/42,064.52 = 6,982.94/x
  3. Step 3: Cross multiply
    28,042.93x = 42,064.52 × 6,982.94
  4. Step 4: Simplify right side
    28,042.93x = 293,734,089.54
  5. Step 5: Solve for x
    x = 293,734,089.54/28,042.93
  6. Step 6: Final answer
    x = 10,474.45

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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.