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Finding the Fourth Proportional to 8,614.04, 11,881.72 and 5,074.76

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Solution

The fourth proportional to 8,614.04, 11,881.72 and 5,074.76 is: 6,999.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,614.04 : 11,881.72 = 5,074.76 : x
  2. Step 2: Convert to fraction form
    8,614.04/11,881.72 = 5,074.76/x
  3. Step 3: Cross multiply
    8,614.04x = 11,881.72 × 5,074.76
  4. Step 4: Simplify right side
    8,614.04x = 60,296,877.39
  5. Step 5: Solve for x
    x = 60,296,877.39/8,614.04
  6. Step 6: Final answer
    x = 6,999.84

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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.