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Finding the Fourth Proportional to 17,047.75, 25,575.12 and 7,187.05

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Solution

The fourth proportional to 17,047.75, 25,575.12 and 7,187.05 is: 10,782.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,047.75 : 25,575.12 = 7,187.05 : x
  2. Step 2: Convert to fraction form
    17,047.75/25,575.12 = 7,187.05/x
  3. Step 3: Cross multiply
    17,047.75x = 25,575.12 × 7,187.05
  4. Step 4: Simplify right side
    17,047.75x = 183,809,666.20
  5. Step 5: Solve for x
    x = 183,809,666.20/17,047.75
  6. Step 6: Final answer
    x = 10,782.05

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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.