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Finding the Fourth Proportional to 17,821.60, 26,732.40 and 17,562.40

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Solution

The fourth proportional to 17,821.60, 26,732.40 and 17,562.40 is: 26,343.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,821.60 : 26,732.40 = 17,562.40 : x
  2. Step 2: Convert to fraction form
    17,821.60/26,732.40 = 17,562.40/x
  3. Step 3: Cross multiply
    17,821.60x = 26,732.40 × 17,562.40
  4. Step 4: Simplify right side
    17,821.60x = 469,485,101.76
  5. Step 5: Solve for x
    x = 469,485,101.76/17,821.60
  6. Step 6: Final answer
    x = 26,343.60

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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.