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Finding the Fourth Proportional to 17,873.80, 26,810.70 and 14,979.40

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Solution

The fourth proportional to 17,873.80, 26,810.70 and 14,979.40 is: 22,469.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,873.80 : 26,810.70 = 14,979.40 : x
  2. Step 2: Convert to fraction form
    17,873.80/26,810.70 = 14,979.40/x
  3. Step 3: Cross multiply
    17,873.80x = 26,810.70 × 14,979.40
  4. Step 4: Simplify right side
    17,873.80x = 401,608,199.58
  5. Step 5: Solve for x
    x = 401,608,199.58/17,873.80
  6. Step 6: Final answer
    x = 22,469.10

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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.