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Finding the Fourth Proportional to 31,013.70, 46,520.55 and 28,826.70

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Solution

The fourth proportional to 31,013.70, 46,520.55 and 28,826.70 is: 43,240.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,013.70 : 46,520.55 = 28,826.70 : x
  2. Step 2: Convert to fraction form
    31,013.70/46,520.55 = 28,826.70/x
  3. Step 3: Cross multiply
    31,013.70x = 46,520.55 × 28,826.70
  4. Step 4: Simplify right side
    31,013.70x = 1,341,033,938.69
  5. Step 5: Solve for x
    x = 1,341,033,938.69/31,013.70
  6. Step 6: Final answer
    x = 43,240.05

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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.