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Finding the Fourth Proportional to 43,582.65, 65,373.07 and 11,992.59

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Solution

The fourth proportional to 43,582.65, 65,373.07 and 11,992.59 is: 17,988.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,582.65 : 65,373.07 = 11,992.59 : x
  2. Step 2: Convert to fraction form
    43,582.65/65,373.07 = 11,992.59/x
  3. Step 3: Cross multiply
    43,582.65x = 65,373.07 × 11,992.59
  4. Step 4: Simplify right side
    43,582.65x = 783,992,425.55
  5. Step 5: Solve for x
    x = 783,992,425.55/43,582.65
  6. Step 6: Final answer
    x = 17,988.64

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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.