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Finding the Fourth Proportional to 21,951.20, 32,926.80 and 17,030.45

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Solution

The fourth proportional to 21,951.20, 32,926.80 and 17,030.45 is: 25,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,951.20 : 32,926.80 = 17,030.45 : x
  2. Step 2: Convert to fraction form
    21,951.20/32,926.80 = 17,030.45/x
  3. Step 3: Cross multiply
    21,951.20x = 32,926.80 × 17,030.45
  4. Step 4: Simplify right side
    21,951.20x = 560,758,221.06
  5. Step 5: Solve for x
    x = 560,758,221.06/21,951.20
  6. Step 6: Final answer
    x = 25,545.68

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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.