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Finding the Fourth Proportional to 16,847.40, 25,271.10 and 12,716.40

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Solution

The fourth proportional to 16,847.40, 25,271.10 and 12,716.40 is: 19,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,847.40 : 25,271.10 = 12,716.40 : x
  2. Step 2: Convert to fraction form
    16,847.40/25,271.10 = 12,716.40/x
  3. Step 3: Cross multiply
    16,847.40x = 25,271.10 × 12,716.40
  4. Step 4: Simplify right side
    16,847.40x = 321,357,416.04
  5. Step 5: Solve for x
    x = 321,357,416.04/16,847.40
  6. Step 6: Final answer
    x = 19,074.60

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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.