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Finding the Fourth Proportional to 17,472.40, 26,273.40 and 14,621.20

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Solution

The fourth proportional to 17,472.40, 26,273.40 and 14,621.20 is: 21,986.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,472.40 : 26,273.40 = 14,621.20 : x
  2. Step 2: Convert to fraction form
    17,472.40/26,273.40 = 14,621.20/x
  3. Step 3: Cross multiply
    17,472.40x = 26,273.40 × 14,621.20
  4. Step 4: Simplify right side
    17,472.40x = 384,148,636.08
  5. Step 5: Solve for x
    x = 384,148,636.08/17,472.40
  6. Step 6: Final answer
    x = 21,986.03

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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.