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Finding the Fourth Proportional to 8,467.80, 12,703.05 and 3,534.90

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Solution

The fourth proportional to 8,467.80, 12,703.05 and 3,534.90 is: 5,302.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,467.80 : 12,703.05 = 3,534.90 : x
  2. Step 2: Convert to fraction form
    8,467.80/12,703.05 = 3,534.90/x
  3. Step 3: Cross multiply
    8,467.80x = 12,703.05 × 3,534.90
  4. Step 4: Simplify right side
    8,467.80x = 44,904,011.45
  5. Step 5: Solve for x
    x = 44,904,011.45/8,467.80
  6. Step 6: Final answer
    x = 5,302.91

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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.