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Finding the Fourth Proportional to 71,634.34, 98,853.43 and 39,802.42

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Solution

The fourth proportional to 71,634.34, 98,853.43 and 39,802.42 is: 54,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,634.34 : 98,853.43 = 39,802.42 : x
  2. Step 2: Convert to fraction form
    71,634.34/98,853.43 = 39,802.42/x
  3. Step 3: Cross multiply
    71,634.34x = 98,853.43 × 39,802.42
  4. Step 4: Simplify right side
    71,634.34x = 3,934,605,046.02
  5. Step 5: Solve for x
    x = 3,934,605,046.02/71,634.34
  6. Step 6: Final answer
    x = 54,926.25

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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.