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Finding the Fourth Proportional to 17,723.40, 26,533.90 and 15,880.20

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Solution

The fourth proportional to 17,723.40, 26,533.90 and 15,880.20 is: 23,774.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,723.40 : 26,533.90 = 15,880.20 : x
  2. Step 2: Convert to fraction form
    17,723.40/26,533.90 = 15,880.20/x
  3. Step 3: Cross multiply
    17,723.40x = 26,533.90 × 15,880.20
  4. Step 4: Simplify right side
    17,723.40x = 421,363,638.78
  5. Step 5: Solve for x
    x = 421,363,638.78/17,723.40
  6. Step 6: Final answer
    x = 23,774.42

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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.