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Finding the Fourth Proportional to 10,867.80, 16,301.70 and 7,368.60

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Solution

The fourth proportional to 10,867.80, 16,301.70 and 7,368.60 is: 11,052.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,867.80 : 16,301.70 = 7,368.60 : x
  2. Step 2: Convert to fraction form
    10,867.80/16,301.70 = 7,368.60/x
  3. Step 3: Cross multiply
    10,867.80x = 16,301.70 × 7,368.60
  4. Step 4: Simplify right side
    10,867.80x = 120,120,706.62
  5. Step 5: Solve for x
    x = 120,120,706.62/10,867.80
  6. Step 6: Final answer
    x = 11,052.90

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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.