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Finding the Fourth Proportional to 17,455.76, 26,065.05 and 16,982.81

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Solution

The fourth proportional to 17,455.76, 26,065.05 and 16,982.81 is: 25,358.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,455.76 : 26,065.05 = 16,982.81 : x
  2. Step 2: Convert to fraction form
    17,455.76/26,065.05 = 16,982.81/x
  3. Step 3: Cross multiply
    17,455.76x = 26,065.05 × 16,982.81
  4. Step 4: Simplify right side
    17,455.76x = 442,657,791.79
  5. Step 5: Solve for x
    x = 442,657,791.79/17,455.76
  6. Step 6: Final answer
    x = 25,358.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.