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Finding the Fourth Proportional to 16,856.80, 25,333.80 and 14,718.40

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Solution

The fourth proportional to 16,856.80, 25,333.80 and 14,718.40 is: 22,120.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,856.80 : 25,333.80 = 14,718.40 : x
  2. Step 2: Convert to fraction form
    16,856.80/25,333.80 = 14,718.40/x
  3. Step 3: Cross multiply
    16,856.80x = 25,333.80 × 14,718.40
  4. Step 4: Simplify right side
    16,856.80x = 372,873,001.92
  5. Step 5: Solve for x
    x = 372,873,001.92/16,856.80
  6. Step 6: Final answer
    x = 22,120.03

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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.