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Finding the Fourth Proportional to 29,496.52, 40,719.20 and 18,892.40

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Solution

The fourth proportional to 29,496.52, 40,719.20 and 18,892.40 is: 26,080.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,496.52 : 40,719.20 = 18,892.40 : x
  2. Step 2: Convert to fraction form
    29,496.52/40,719.20 = 18,892.40/x
  3. Step 3: Cross multiply
    29,496.52x = 40,719.20 × 18,892.40
  4. Step 4: Simplify right side
    29,496.52x = 769,283,421.42
  5. Step 5: Solve for x
    x = 769,283,421.42/29,496.52
  6. Step 6: Final answer
    x = 26,080.48

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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.