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Finding the Fourth Proportional to 28,671.54, 39,574.89 and 16,741.46

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Solution

The fourth proportional to 28,671.54, 39,574.89 and 16,741.46 is: 23,107.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,671.54 : 39,574.89 = 16,741.46 : x
  2. Step 2: Convert to fraction form
    28,671.54/39,574.89 = 16,741.46/x
  3. Step 3: Cross multiply
    28,671.54x = 39,574.89 × 16,741.46
  4. Step 4: Simplify right side
    28,671.54x = 662,541,240.06
  5. Step 5: Solve for x
    x = 662,541,240.06/28,671.54
  6. Step 6: Final answer
    x = 23,107.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.