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Finding the Fourth Proportional to 8,674.38, 13,007.88 and 5,902.56

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Solution

The fourth proportional to 8,674.38, 13,007.88 and 5,902.56 is: 8,851.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.38 : 13,007.88 = 5,902.56 : x
  2. Step 2: Convert to fraction form
    8,674.38/13,007.88 = 5,902.56/x
  3. Step 3: Cross multiply
    8,674.38x = 13,007.88 × 5,902.56
  4. Step 4: Simplify right side
    8,674.38x = 76,779,792.17
  5. Step 5: Solve for x
    x = 76,779,792.17/8,674.38
  6. Step 6: Final answer
    x = 8,851.33

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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.