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Finding the Fourth Proportional to 17,300.80, 25,970.40 and 16,172.80

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Solution

The fourth proportional to 17,300.80, 25,970.40 and 16,172.80 is: 24,277.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,300.80 : 25,970.40 = 16,172.80 : x
  2. Step 2: Convert to fraction form
    17,300.80/25,970.40 = 16,172.80/x
  3. Step 3: Cross multiply
    17,300.80x = 25,970.40 × 16,172.80
  4. Step 4: Simplify right side
    17,300.80x = 420,014,085.12
  5. Step 5: Solve for x
    x = 420,014,085.12/17,300.80
  6. Step 6: Final answer
    x = 24,277.15

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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.