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Finding the Fourth Proportional to 17,722.80, 26,551.40 and 10,330.80

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Solution

The fourth proportional to 17,722.80, 26,551.40 and 10,330.80 is: 15,477.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,722.80 : 26,551.40 = 10,330.80 : x
  2. Step 2: Convert to fraction form
    17,722.80/26,551.40 = 10,330.80/x
  3. Step 3: Cross multiply
    17,722.80x = 26,551.40 × 10,330.80
  4. Step 4: Simplify right side
    17,722.80x = 274,297,203.12
  5. Step 5: Solve for x
    x = 274,297,203.12/17,722.80
  6. Step 6: Final answer
    x = 15,477.08

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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.