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Finding the Fourth Proportional to 17,551.16, 26,311.08 and 6,455.16

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Solution

The fourth proportional to 17,551.16, 26,311.08 and 6,455.16 is: 9,676.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,551.16 : 26,311.08 = 6,455.16 : x
  2. Step 2: Convert to fraction form
    17,551.16/26,311.08 = 6,455.16/x
  3. Step 3: Cross multiply
    17,551.16x = 26,311.08 × 6,455.16
  4. Step 4: Simplify right side
    17,551.16x = 169,842,231.17
  5. Step 5: Solve for x
    x = 169,842,231.17/17,551.16
  6. Step 6: Final answer
    x = 9,676.98

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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.