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Finding the Fourth Proportional to 71,394.40, 107,091.60 and 29,841.40

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Solution

The fourth proportional to 71,394.40, 107,091.60 and 29,841.40 is: 44,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,394.40 : 107,091.60 = 29,841.40 : x
  2. Step 2: Convert to fraction form
    71,394.40/107,091.60 = 29,841.40/x
  3. Step 3: Cross multiply
    71,394.40x = 107,091.60 × 29,841.40
  4. Step 4: Simplify right side
    71,394.40x = 3,195,763,272.24
  5. Step 5: Solve for x
    x = 3,195,763,272.24/71,394.40
  6. Step 6: Final answer
    x = 44,762.10

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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.