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Finding the Fourth Proportional to 10,697.76, 14,763.60 and 5,981.76

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Solution

The fourth proportional to 10,697.76, 14,763.60 and 5,981.76 is: 8,255.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,697.76 : 14,763.60 = 5,981.76 : x
  2. Step 2: Convert to fraction form
    10,697.76/14,763.60 = 5,981.76/x
  3. Step 3: Cross multiply
    10,697.76x = 14,763.60 × 5,981.76
  4. Step 4: Simplify right side
    10,697.76x = 88,312,311.94
  5. Step 5: Solve for x
    x = 88,312,311.94/10,697.76
  6. Step 6: Final answer
    x = 8,255.22

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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.