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Finding the Fourth Proportional to 28,446.70, 42,671.04 and 10,675.56

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Solution

The fourth proportional to 28,446.70, 42,671.04 and 10,675.56 is: 16,013.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,446.70 : 42,671.04 = 10,675.56 : x
  2. Step 2: Convert to fraction form
    28,446.70/42,671.04 = 10,675.56/x
  3. Step 3: Cross multiply
    28,446.70x = 42,671.04 × 10,675.56
  4. Step 4: Simplify right side
    28,446.70x = 455,537,247.78
  5. Step 5: Solve for x
    x = 455,537,247.78/28,446.70
  6. Step 6: Final answer
    x = 16,013.71

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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.