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Finding the Fourth Proportional to 17,423.80, 26,135.70 and 14,918.20

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Solution

The fourth proportional to 17,423.80, 26,135.70 and 14,918.20 is: 22,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,423.80 : 26,135.70 = 14,918.20 : x
  2. Step 2: Convert to fraction form
    17,423.80/26,135.70 = 14,918.20/x
  3. Step 3: Cross multiply
    17,423.80x = 26,135.70 × 14,918.20
  4. Step 4: Simplify right side
    17,423.80x = 389,897,599.74
  5. Step 5: Solve for x
    x = 389,897,599.74/17,423.80
  6. Step 6: Final answer
    x = 22,377.30

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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.