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Finding the Fourth Proportional to 17,423.70, 26,135.55 and 17,078.10

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Solution

The fourth proportional to 17,423.70, 26,135.55 and 17,078.10 is: 25,617.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,423.70 : 26,135.55 = 17,078.10 : x
  2. Step 2: Convert to fraction form
    17,423.70/26,135.55 = 17,078.10/x
  3. Step 3: Cross multiply
    17,423.70x = 26,135.55 × 17,078.10
  4. Step 4: Simplify right side
    17,423.70x = 446,345,536.46
  5. Step 5: Solve for x
    x = 446,345,536.46/17,423.70
  6. Step 6: Final answer
    x = 25,617.15

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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.