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Finding the Fourth Proportional to 71,045.58, 98,042.91 and 39,214.49

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Solution

The fourth proportional to 71,045.58, 98,042.91 and 39,214.49 is: 54,115.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,045.58 : 98,042.91 = 39,214.49 : x
  2. Step 2: Convert to fraction form
    71,045.58/98,042.91 = 39,214.49/x
  3. Step 3: Cross multiply
    71,045.58x = 98,042.91 × 39,214.49
  4. Step 4: Simplify right side
    71,045.58x = 3,844,702,076.50
  5. Step 5: Solve for x
    x = 3,844,702,076.50/71,045.58
  6. Step 6: Final answer
    x = 54,115.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.