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Finding the Fourth Proportional to 17,758.80, 26,605.80 and 14,972.40

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Solution

The fourth proportional to 17,758.80, 26,605.80 and 14,972.40 is: 22,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,758.80 : 26,605.80 = 14,972.40 : x
  2. Step 2: Convert to fraction form
    17,758.80/26,605.80 = 14,972.40/x
  3. Step 3: Cross multiply
    17,758.80x = 26,605.80 × 14,972.40
  4. Step 4: Simplify right side
    17,758.80x = 398,352,679.92
  5. Step 5: Solve for x
    x = 398,352,679.92/17,758.80
  6. Step 6: Final answer
    x = 22,431.28

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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.