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Finding the Fourth Proportional to 32,679.80, 45,098.40 and 18,532.88

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Solution

The fourth proportional to 32,679.80, 45,098.40 and 18,532.88 is: 25,575.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,679.80 : 45,098.40 = 18,532.88 : x
  2. Step 2: Convert to fraction form
    32,679.80/45,098.40 = 18,532.88/x
  3. Step 3: Cross multiply
    32,679.80x = 45,098.40 × 18,532.88
  4. Step 4: Simplify right side
    32,679.80x = 835,803,235.39
  5. Step 5: Solve for x
    x = 835,803,235.39/32,679.80
  6. Step 6: Final answer
    x = 25,575.53

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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.