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Finding the Fourth Proportional to 45,496.69, 68,248.58 and 20,550.71

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Solution

The fourth proportional to 45,496.69, 68,248.58 and 20,550.71 is: 30,827.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,496.69 : 68,248.58 = 20,550.71 : x
  2. Step 2: Convert to fraction form
    45,496.69/68,248.58 = 20,550.71/x
  3. Step 3: Cross multiply
    45,496.69x = 68,248.58 × 20,550.71
  4. Step 4: Simplify right side
    45,496.69x = 1,402,556,843.36
  5. Step 5: Solve for x
    x = 1,402,556,843.36/45,496.69
  6. Step 6: Final answer
    x = 30,827.67

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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.