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Finding the Fourth Proportional to 13,011.62, 17,956.02 and 7,043.33

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Solution

The fourth proportional to 13,011.62, 17,956.02 and 7,043.33 is: 9,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.62 : 17,956.02 = 7,043.33 : x
  2. Step 2: Convert to fraction form
    13,011.62/17,956.02 = 7,043.33/x
  3. Step 3: Cross multiply
    13,011.62x = 17,956.02 × 7,043.33
  4. Step 4: Simplify right side
    13,011.62x = 126,470,245.65
  5. Step 5: Solve for x
    x = 126,470,245.65/13,011.62
  6. Step 6: Final answer
    x = 9,719.80

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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.