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Finding the Fourth Proportional to 32,668.40, 45,083.40 and 18,521.84

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Solution

The fourth proportional to 32,668.40, 45,083.40 and 18,521.84 is: 25,560.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,668.40 : 45,083.40 = 18,521.84 : x
  2. Step 2: Convert to fraction form
    32,668.40/45,083.40 = 18,521.84/x
  3. Step 3: Cross multiply
    32,668.40x = 45,083.40 × 18,521.84
  4. Step 4: Simplify right side
    32,668.40x = 835,027,521.46
  5. Step 5: Solve for x
    x = 835,027,521.46/32,668.40
  6. Step 6: Final answer
    x = 25,560.71

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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.