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Finding the Fourth Proportional to 18,847.08, 28,447.74 and 18,847.08

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Solution

The fourth proportional to 18,847.08, 28,447.74 and 18,847.08 is: 28,447.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,847.08 : 28,447.74 = 18,847.08 : x
  2. Step 2: Convert to fraction form
    18,847.08/28,447.74 = 18,847.08/x
  3. Step 3: Cross multiply
    18,847.08x = 28,447.74 × 18,847.08
  4. Step 4: Simplify right side
    18,847.08x = 536,156,831.60
  5. Step 5: Solve for x
    x = 536,156,831.60/18,847.08
  6. Step 6: Final answer
    x = 28,447.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.