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Finding the Fourth Proportional to 28,755.92, 43,131.18 and 10,035.20

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Solution

The fourth proportional to 28,755.92, 43,131.18 and 10,035.20 is: 15,051.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,755.92 : 43,131.18 = 10,035.20 : x
  2. Step 2: Convert to fraction form
    28,755.92/43,131.18 = 10,035.20/x
  3. Step 3: Cross multiply
    28,755.92x = 43,131.18 × 10,035.20
  4. Step 4: Simplify right side
    28,755.92x = 432,830,017.54
  5. Step 5: Solve for x
    x = 432,830,017.54/28,755.92
  6. Step 6: Final answer
    x = 15,051.86

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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.