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Finding the Fourth Proportional to 10,719.60, 16,122.60 and 9,596.40

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Solution

The fourth proportional to 10,719.60, 16,122.60 and 9,596.40 is: 14,433.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.60 : 16,122.60 = 9,596.40 : x
  2. Step 2: Convert to fraction form
    10,719.60/16,122.60 = 9,596.40/x
  3. Step 3: Cross multiply
    10,719.60x = 16,122.60 × 9,596.40
  4. Step 4: Simplify right side
    10,719.60x = 154,718,918.64
  5. Step 5: Solve for x
    x = 154,718,918.64/10,719.60
  6. Step 6: Final answer
    x = 14,433.27

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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.