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Finding the Fourth Proportional to 13,043.82, 17,992.78 and 9,011.64

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Solution

The fourth proportional to 13,043.82, 17,992.78 and 9,011.64 is: 12,430.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,043.82 : 17,992.78 = 9,011.64 : x
  2. Step 2: Convert to fraction form
    13,043.82/17,992.78 = 9,011.64/x
  3. Step 3: Cross multiply
    13,043.82x = 17,992.78 × 9,011.64
  4. Step 4: Simplify right side
    13,043.82x = 162,144,455.96
  5. Step 5: Solve for x
    x = 162,144,455.96/13,043.82
  6. Step 6: Final answer
    x = 12,430.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.