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Finding the Fourth Proportional to 32,405.80, 44,719.44 and 18,258.40

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Solution

The fourth proportional to 32,405.80, 44,719.44 and 18,258.40 is: 25,196.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,405.80 : 44,719.44 = 18,258.40 : x
  2. Step 2: Convert to fraction form
    32,405.80/44,719.44 = 18,258.40/x
  3. Step 3: Cross multiply
    32,405.80x = 44,719.44 × 18,258.40
  4. Step 4: Simplify right side
    32,405.80x = 816,505,423.30
  5. Step 5: Solve for x
    x = 816,505,423.30/32,405.80
  6. Step 6: Final answer
    x = 25,196.27

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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.