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Finding the Fourth Proportional to 47,757.76, 65,906.40 and 26,538.40

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Solution

The fourth proportional to 47,757.76, 65,906.40 and 26,538.40 is: 36,623.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,757.76 : 65,906.40 = 26,538.40 : x
  2. Step 2: Convert to fraction form
    47,757.76/65,906.40 = 26,538.40/x
  3. Step 3: Cross multiply
    47,757.76x = 65,906.40 × 26,538.40
  4. Step 4: Simplify right side
    47,757.76x = 1,749,050,405.76
  5. Step 5: Solve for x
    x = 1,749,050,405.76/47,757.76
  6. Step 6: Final answer
    x = 36,623.38

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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.