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Finding the Fourth Proportional to 28,691.56, 43,205.11 and 25,037.56

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Solution

The fourth proportional to 28,691.56, 43,205.11 and 25,037.56 is: 37,702.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,691.56 : 43,205.11 = 25,037.56 : x
  2. Step 2: Convert to fraction form
    28,691.56/43,205.11 = 25,037.56/x
  3. Step 3: Cross multiply
    28,691.56x = 43,205.11 × 25,037.56
  4. Step 4: Simplify right side
    28,691.56x = 1,081,750,533.93
  5. Step 5: Solve for x
    x = 1,081,750,533.93/28,691.56
  6. Step 6: Final answer
    x = 37,702.74

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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.