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Finding the Fourth Proportional to 17,152.40, 25,728.60 and 15,366.80

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Solution

The fourth proportional to 17,152.40, 25,728.60 and 15,366.80 is: 23,050.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,152.40 : 25,728.60 = 15,366.80 : x
  2. Step 2: Convert to fraction form
    17,152.40/25,728.60 = 15,366.80/x
  3. Step 3: Cross multiply
    17,152.40x = 25,728.60 × 15,366.80
  4. Step 4: Simplify right side
    17,152.40x = 395,366,250.48
  5. Step 5: Solve for x
    x = 395,366,250.48/17,152.40
  6. Step 6: Final answer
    x = 23,050.20

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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.