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Finding the Fourth Proportional to 28,617.84, 43,107.12 and 26,868.24

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Solution

The fourth proportional to 28,617.84, 43,107.12 and 26,868.24 is: 40,471.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,617.84 : 43,107.12 = 26,868.24 : x
  2. Step 2: Convert to fraction form
    28,617.84/43,107.12 = 26,868.24/x
  3. Step 3: Cross multiply
    28,617.84x = 43,107.12 × 26,868.24
  4. Step 4: Simplify right side
    28,617.84x = 1,158,212,445.87
  5. Step 5: Solve for x
    x = 1,158,212,445.87/28,617.84
  6. Step 6: Final answer
    x = 40,471.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.