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Finding the Fourth Proportional to 71,367.94, 98,483.88 and 39,534.94

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Solution

The fourth proportional to 71,367.94, 98,483.88 and 39,534.94 is: 54,556.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,367.94 : 98,483.88 = 39,534.94 : x
  2. Step 2: Convert to fraction form
    71,367.94/98,483.88 = 39,534.94/x
  3. Step 3: Cross multiply
    71,367.94x = 98,483.88 × 39,534.94
  4. Step 4: Simplify right side
    71,367.94x = 3,893,554,286.77
  5. Step 5: Solve for x
    x = 3,893,554,286.77/71,367.94
  6. Step 6: Final answer
    x = 54,556.07

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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.