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Finding the Fourth Proportional to 61,814.95, 85,304.64 and 33,520.66

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Solution

The fourth proportional to 61,814.95, 85,304.64 and 33,520.66 is: 46,258.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,814.95 : 85,304.64 = 33,520.66 : x
  2. Step 2: Convert to fraction form
    61,814.95/85,304.64 = 33,520.66/x
  3. Step 3: Cross multiply
    61,814.95x = 85,304.64 × 33,520.66
  4. Step 4: Simplify right side
    61,814.95x = 2,859,467,879.52
  5. Step 5: Solve for x
    x = 2,859,467,879.52/61,814.95
  6. Step 6: Final answer
    x = 46,258.51

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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.