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Finding the Fourth Proportional to 62,272, 85,935.36 and 33,978.28

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Solution

The fourth proportional to 62,272, 85,935.36 and 33,978.28 is: 46,890.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,272 : 85,935.36 = 33,978.28 : x
  2. Step 2: Convert to fraction form
    62,272/85,935.36 = 33,978.28/x
  3. Step 3: Cross multiply
    62,272x = 85,935.36 × 33,978.28
  4. Step 4: Simplify right side
    62,272x = 2,919,935,723.98
  5. Step 5: Solve for x
    x = 2,919,935,723.98/62,272
  6. Step 6: Final answer
    x = 46,890.03

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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.