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Finding the Fourth Proportional to 36,564.72, 54,835.72 and 13,188.12

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Solution

The fourth proportional to 36,564.72, 54,835.72 and 13,188.12 is: 19,778.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,564.72 : 54,835.72 = 13,188.12 : x
  2. Step 2: Convert to fraction form
    36,564.72/54,835.72 = 13,188.12/x
  3. Step 3: Cross multiply
    36,564.72x = 54,835.72 × 13,188.12
  4. Step 4: Simplify right side
    36,564.72x = 723,180,055.65
  5. Step 5: Solve for x
    x = 723,180,055.65/36,564.72
  6. Step 6: Final answer
    x = 19,778.08

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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.