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Finding the Fourth Proportional to 8,706.46, 12,020.04 and 5,304.75

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Solution

The fourth proportional to 8,706.46, 12,020.04 and 5,304.75 is: 7,323.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.46 : 12,020.04 = 5,304.75 : x
  2. Step 2: Convert to fraction form
    8,706.46/12,020.04 = 5,304.75/x
  3. Step 3: Cross multiply
    8,706.46x = 12,020.04 × 5,304.75
  4. Step 4: Simplify right side
    8,706.46x = 63,763,265.64
  5. Step 5: Solve for x
    x = 63,763,265.64/8,706.46
  6. Step 6: Final answer
    x = 7,323.68

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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.