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Finding the Fourth Proportional to 8,475.77, 11,696.34 and 4,938.74

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Solution

The fourth proportional to 8,475.77, 11,696.34 and 4,938.74 is: 6,815.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.77 : 11,696.34 = 4,938.74 : x
  2. Step 2: Convert to fraction form
    8,475.77/11,696.34 = 4,938.74/x
  3. Step 3: Cross multiply
    8,475.77x = 11,696.34 × 4,938.74
  4. Step 4: Simplify right side
    8,475.77x = 57,765,123.73
  5. Step 5: Solve for x
    x = 57,765,123.73/8,475.77
  6. Step 6: Final answer
    x = 6,815.33

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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.