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Finding the Fourth Proportional to 61,935.68, 85,468.91 and 33,640.76

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Solution

The fourth proportional to 61,935.68, 85,468.91 and 33,640.76 is: 46,422.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,935.68 : 85,468.91 = 33,640.76 : x
  2. Step 2: Convert to fraction form
    61,935.68/85,468.91 = 33,640.76/x
  3. Step 3: Cross multiply
    61,935.68x = 85,468.91 × 33,640.76
  4. Step 4: Simplify right side
    61,935.68x = 2,875,238,493.22
  5. Step 5: Solve for x
    x = 2,875,238,493.22/61,935.68
  6. Step 6: Final answer
    x = 46,422.98

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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.