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Finding the Fourth Proportional to 17,402.16, 26,106.78 and 7,406.88

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Solution

The fourth proportional to 17,402.16, 26,106.78 and 7,406.88 is: 11,111.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,402.16 : 26,106.78 = 7,406.88 : x
  2. Step 2: Convert to fraction form
    17,402.16/26,106.78 = 7,406.88/x
  3. Step 3: Cross multiply
    17,402.16x = 26,106.78 × 7,406.88
  4. Step 4: Simplify right side
    17,402.16x = 193,369,786.65
  5. Step 5: Solve for x
    x = 193,369,786.65/17,402.16
  6. Step 6: Final answer
    x = 11,111.83

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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.