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Finding the Fourth Proportional to 79,589.64, 109,836.90 and 47,746.92

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Solution

The fourth proportional to 79,589.64, 109,836.90 and 47,746.92 is: 65,892.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,589.64 : 109,836.90 = 47,746.92 : x
  2. Step 2: Convert to fraction form
    79,589.64/109,836.90 = 47,746.92/x
  3. Step 3: Cross multiply
    79,589.64x = 109,836.90 × 47,746.92
  4. Step 4: Simplify right side
    79,589.64x = 5,244,373,677.35
  5. Step 5: Solve for x
    x = 5,244,373,677.35/79,589.64
  6. Step 6: Final answer
    x = 65,892.67

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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.