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Finding the Fourth Proportional to 45,992.80, 68,989.20 and 16,411.60

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Solution

The fourth proportional to 45,992.80, 68,989.20 and 16,411.60 is: 24,617.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,992.80 : 68,989.20 = 16,411.60 : x
  2. Step 2: Convert to fraction form
    45,992.80/68,989.20 = 16,411.60/x
  3. Step 3: Cross multiply
    45,992.80x = 68,989.20 × 16,411.60
  4. Step 4: Simplify right side
    45,992.80x = 1,132,223,154.72
  5. Step 5: Solve for x
    x = 1,132,223,154.72/45,992.80
  6. Step 6: Final answer
    x = 24,617.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.