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Finding the Fourth Proportional to 13,469.76, 18,595.98 and 9,001.08

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Solution

The fourth proportional to 13,469.76, 18,595.98 and 9,001.08 is: 12,426.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469.76 : 18,595.98 = 9,001.08 : x
  2. Step 2: Convert to fraction form
    13,469.76/18,595.98 = 9,001.08/x
  3. Step 3: Cross multiply
    13,469.76x = 18,595.98 × 9,001.08
  4. Step 4: Simplify right side
    13,469.76x = 167,383,903.66
  5. Step 5: Solve for x
    x = 167,383,903.66/13,469.76
  6. Step 6: Final answer
    x = 12,426.64

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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.