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Finding the Fourth Proportional to 18,415.96, 25,441.80 and 14,873.02

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Solution

The fourth proportional to 18,415.96, 25,441.80 and 14,873.02 is: 20,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.96 : 25,441.80 = 14,873.02 : x
  2. Step 2: Convert to fraction form
    18,415.96/25,441.80 = 14,873.02/x
  3. Step 3: Cross multiply
    18,415.96x = 25,441.80 × 14,873.02
  4. Step 4: Simplify right side
    18,415.96x = 378,396,280.86
  5. Step 5: Solve for x
    x = 378,396,280.86/18,415.96
  6. Step 6: Final answer
    x = 20,547.20

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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.