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Finding the Fourth Proportional to 81,562.75, 112,504.79 and 58,934.95

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Solution

The fourth proportional to 81,562.75, 112,504.79 and 58,934.95 is: 81,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,562.75 : 112,504.79 = 58,934.95 : x
  2. Step 2: Convert to fraction form
    81,562.75/112,504.79 = 58,934.95/x
  3. Step 3: Cross multiply
    81,562.75x = 112,504.79 × 58,934.95
  4. Step 4: Simplify right side
    81,562.75x = 6,630,464,039.49
  5. Step 5: Solve for x
    x = 6,630,464,039.49/81,562.75
  6. Step 6: Final answer
    x = 81,292.80

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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.