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Finding the Fourth Proportional to 6,930.88, 9,554.16 and 5,435.68

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Solution

The fourth proportional to 6,930.88, 9,554.16 and 5,435.68 is: 7,493.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,930.88 : 9,554.16 = 5,435.68 : x
  2. Step 2: Convert to fraction form
    6,930.88/9,554.16 = 5,435.68/x
  3. Step 3: Cross multiply
    6,930.88x = 9,554.16 × 5,435.68
  4. Step 4: Simplify right side
    6,930.88x = 51,933,356.43
  5. Step 5: Solve for x
    x = 51,933,356.43/6,930.88
  6. Step 6: Final answer
    x = 7,493.04

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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.