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Finding the Fourth Proportional to 26,612.76, 39,923.04 and 14,129.60

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Solution

The fourth proportional to 26,612.76, 39,923.04 and 14,129.60 is: 21,196.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,612.76 : 39,923.04 = 14,129.60 : x
  2. Step 2: Convert to fraction form
    26,612.76/39,923.04 = 14,129.60/x
  3. Step 3: Cross multiply
    26,612.76x = 39,923.04 × 14,129.60
  4. Step 4: Simplify right side
    26,612.76x = 564,096,585.98
  5. Step 5: Solve for x
    x = 564,096,585.98/26,612.76
  6. Step 6: Final answer
    x = 21,196.47

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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.