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Finding the Fourth Proportional to 34,645.32, 51,948.54 and 20,609.64

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Solution

The fourth proportional to 34,645.32, 51,948.54 and 20,609.64 is: 30,902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,645.32 : 51,948.54 = 20,609.64 : x
  2. Step 2: Convert to fraction form
    34,645.32/51,948.54 = 20,609.64/x
  3. Step 3: Cross multiply
    34,645.32x = 51,948.54 × 20,609.64
  4. Step 4: Simplify right side
    34,645.32x = 1,070,640,707.93
  5. Step 5: Solve for x
    x = 1,070,640,707.93/34,645.32
  6. Step 6: Final answer
    x = 30,902.90

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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.