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Finding the Fourth Proportional to 71,693.07, 107,476.72 and 27,290.28

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Solution

The fourth proportional to 71,693.07, 107,476.72 and 27,290.28 is: 40,911.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,693.07 : 107,476.72 = 27,290.28 : x
  2. Step 2: Convert to fraction form
    71,693.07/107,476.72 = 27,290.28/x
  3. Step 3: Cross multiply
    71,693.07x = 107,476.72 × 27,290.28
  4. Step 4: Simplify right side
    71,693.07x = 2,933,070,270.60
  5. Step 5: Solve for x
    x = 2,933,070,270.60/71,693.07
  6. Step 6: Final answer
    x = 40,911.49

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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.