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Finding the Fourth Proportional to 17,235.80, 25,840.90 and 6,842.20

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Solution

The fourth proportional to 17,235.80, 25,840.90 and 6,842.20 is: 10,258.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,235.80 : 25,840.90 = 6,842.20 : x
  2. Step 2: Convert to fraction form
    17,235.80/25,840.90 = 6,842.20/x
  3. Step 3: Cross multiply
    17,235.80x = 25,840.90 × 6,842.20
  4. Step 4: Simplify right side
    17,235.80x = 176,808,605.98
  5. Step 5: Solve for x
    x = 176,808,605.98/17,235.80
  6. Step 6: Final answer
    x = 10,258.22

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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.