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Finding the Fourth Proportional to 71,675.34, 107,514.90 and 19,084.92

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Solution

The fourth proportional to 71,675.34, 107,514.90 and 19,084.92 is: 28,627.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,675.34 : 107,514.90 = 19,084.92 : x
  2. Step 2: Convert to fraction form
    71,675.34/107,514.90 = 19,084.92/x
  3. Step 3: Cross multiply
    71,675.34x = 107,514.90 × 19,084.92
  4. Step 4: Simplify right side
    71,675.34x = 2,051,913,265.31
  5. Step 5: Solve for x
    x = 2,051,913,265.31/71,675.34
  6. Step 6: Final answer
    x = 28,627.88

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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.