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Finding the Fourth Proportional to 18,099.60, 24,989.10 and 14,750.42

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Solution

The fourth proportional to 18,099.60, 24,989.10 and 14,750.42 is: 20,365.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,099.60 : 24,989.10 = 14,750.42 : x
  2. Step 2: Convert to fraction form
    18,099.60/24,989.10 = 14,750.42/x
  3. Step 3: Cross multiply
    18,099.60x = 24,989.10 × 14,750.42
  4. Step 4: Simplify right side
    18,099.60x = 368,599,720.42
  5. Step 5: Solve for x
    x = 368,599,720.42/18,099.60
  6. Step 6: Final answer
    x = 20,365.08

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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.