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Finding the Fourth Proportional to 20,594.48, 30,891.88 and 13,484.71

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Solution

The fourth proportional to 20,594.48, 30,891.88 and 13,484.71 is: 20,227.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.48 : 30,891.88 = 13,484.71 : x
  2. Step 2: Convert to fraction form
    20,594.48/30,891.88 = 13,484.71/x
  3. Step 3: Cross multiply
    20,594.48x = 30,891.88 × 13,484.71
  4. Step 4: Simplify right side
    20,594.48x = 416,567,888.70
  5. Step 5: Solve for x
    x = 416,567,888.70/20,594.48
  6. Step 6: Final answer
    x = 20,227.17

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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.