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Finding the Fourth Proportional to 29,494.68, 40,696.47 and 18,742.74

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Solution

The fourth proportional to 29,494.68, 40,696.47 and 18,742.74 is: 25,861.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,494.68 : 40,696.47 = 18,742.74 : x
  2. Step 2: Convert to fraction form
    29,494.68/40,696.47 = 18,742.74/x
  3. Step 3: Cross multiply
    29,494.68x = 40,696.47 × 18,742.74
  4. Step 4: Simplify right side
    29,494.68x = 762,763,356.13
  5. Step 5: Solve for x
    x = 762,763,356.13/29,494.68
  6. Step 6: Final answer
    x = 25,861.05

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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.