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Finding the Fourth Proportional to 109,685.76, 164,529.50 and 26,579.76

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Solution

The fourth proportional to 109,685.76, 164,529.50 and 26,579.76 is: 39,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,685.76 : 164,529.50 = 26,579.76 : x
  2. Step 2: Convert to fraction form
    109,685.76/164,529.50 = 26,579.76/x
  3. Step 3: Cross multiply
    109,685.76x = 164,529.50 × 26,579.76
  4. Step 4: Simplify right side
    109,685.76x = 4,373,154,622.92
  5. Step 5: Solve for x
    x = 4,373,154,622.92/109,685.76
  6. Step 6: Final answer
    x = 39,869.85

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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.