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Finding the Fourth Proportional to 17,986.70, 24,854.65 and 17,122.49

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Solution

The fourth proportional to 17,986.70, 24,854.65 and 17,122.49 is: 23,660.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,986.70 : 24,854.65 = 17,122.49 : x
  2. Step 2: Convert to fraction form
    17,986.70/24,854.65 = 17,122.49/x
  3. Step 3: Cross multiply
    17,986.70x = 24,854.65 × 17,122.49
  4. Step 4: Simplify right side
    17,986.70x = 425,573,496.08
  5. Step 5: Solve for x
    x = 425,573,496.08/17,986.70
  6. Step 6: Final answer
    x = 23,660.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.