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Finding the Fourth Proportional to 16,878.80, 25,366.80 and 14,740.40

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Solution

The fourth proportional to 16,878.80, 25,366.80 and 14,740.40 is: 22,153.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,878.80 : 25,366.80 = 14,740.40 : x
  2. Step 2: Convert to fraction form
    16,878.80/25,366.80 = 14,740.40/x
  3. Step 3: Cross multiply
    16,878.80x = 25,366.80 × 14,740.40
  4. Step 4: Simplify right side
    16,878.80x = 373,916,778.72
  5. Step 5: Solve for x
    x = 373,916,778.72/16,878.80
  6. Step 6: Final answer
    x = 22,153.04

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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.