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Finding the Fourth Proportional to 17,312.10, 25,968.15 and 16,218.60

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Solution

The fourth proportional to 17,312.10, 25,968.15 and 16,218.60 is: 24,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,312.10 : 25,968.15 = 16,218.60 : x
  2. Step 2: Convert to fraction form
    17,312.10/25,968.15 = 16,218.60/x
  3. Step 3: Cross multiply
    17,312.10x = 25,968.15 × 16,218.60
  4. Step 4: Simplify right side
    17,312.10x = 421,167,037.59
  5. Step 5: Solve for x
    x = 421,167,037.59/17,312.10
  6. Step 6: Final answer
    x = 24,327.90

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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.