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Finding the Fourth Proportional to 17,236.80, 25,830.90 and 10,643.40

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Solution

The fourth proportional to 17,236.80, 25,830.90 and 10,643.40 is: 15,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,236.80 : 25,830.90 = 10,643.40 : x
  2. Step 2: Convert to fraction form
    17,236.80/25,830.90 = 10,643.40/x
  3. Step 3: Cross multiply
    17,236.80x = 25,830.90 × 10,643.40
  4. Step 4: Simplify right side
    17,236.80x = 274,928,601.06
  5. Step 5: Solve for x
    x = 274,928,601.06/17,236.80
  6. Step 6: Final answer
    x = 15,950.10

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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.