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Finding the Fourth Proportional to 8,596.40, 11,862.90 and 4,819.70

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Solution

The fourth proportional to 8,596.40, 11,862.90 and 4,819.70 is: 6,651.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,596.40 : 11,862.90 = 4,819.70 : x
  2. Step 2: Convert to fraction form
    8,596.40/11,862.90 = 4,819.70/x
  3. Step 3: Cross multiply
    8,596.40x = 11,862.90 × 4,819.70
  4. Step 4: Simplify right side
    8,596.40x = 57,175,559.82
  5. Step 5: Solve for x
    x = 57,175,559.82/8,596.40
  6. Step 6: Final answer
    x = 6,651.11

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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.