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Finding the Fourth Proportional to 17,916.19, 26,685.01 and 16,979.42

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Solution

The fourth proportional to 17,916.19, 26,685.01 and 16,979.42 is: 25,289.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,916.19 : 26,685.01 = 16,979.42 : x
  2. Step 2: Convert to fraction form
    17,916.19/26,685.01 = 16,979.42/x
  3. Step 3: Cross multiply
    17,916.19x = 26,685.01 × 16,979.42
  4. Step 4: Simplify right side
    17,916.19x = 453,096,080.43
  5. Step 5: Solve for x
    x = 453,096,080.43/17,916.19
  6. Step 6: Final answer
    x = 25,289.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.