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Finding the Fourth Proportional to 47,661.57, 65,780.80 and 26,447.67

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Solution

The fourth proportional to 47,661.57, 65,780.80 and 26,447.67 is: 36,502.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,661.57 : 65,780.80 = 26,447.67 : x
  2. Step 2: Convert to fraction form
    47,661.57/65,780.80 = 26,447.67/x
  3. Step 3: Cross multiply
    47,661.57x = 65,780.80 × 26,447.67
  4. Step 4: Simplify right side
    47,661.57x = 1,739,748,824.62
  5. Step 5: Solve for x
    x = 1,739,748,824.62/47,661.57
  6. Step 6: Final answer
    x = 36,502.13

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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.