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Finding the Fourth Proportional to 71,201.84, 98,256.85 and 38,935.08

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Solution

The fourth proportional to 71,201.84, 98,256.85 and 38,935.08 is: 53,729.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,201.84 : 98,256.85 = 38,935.08 : x
  2. Step 2: Convert to fraction form
    71,201.84/98,256.85 = 38,935.08/x
  3. Step 3: Cross multiply
    71,201.84x = 98,256.85 × 38,935.08
  4. Step 4: Simplify right side
    71,201.84x = 3,825,638,217.96
  5. Step 5: Solve for x
    x = 3,825,638,217.96/71,201.84
  6. Step 6: Final answer
    x = 53,729.49

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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.