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Finding the Fourth Proportional to 6,689.54, 9,235.67 and 4,799.60

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Solution

The fourth proportional to 6,689.54, 9,235.67 and 4,799.60 is: 6,626.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689.54 : 9,235.67 = 4,799.60 : x
  2. Step 2: Convert to fraction form
    6,689.54/9,235.67 = 4,799.60/x
  3. Step 3: Cross multiply
    6,689.54x = 9,235.67 × 4,799.60
  4. Step 4: Simplify right side
    6,689.54x = 44,327,565.14
  5. Step 5: Solve for x
    x = 44,327,565.14/6,689.54
  6. Step 6: Final answer
    x = 6,626.40

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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.