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Finding the Fourth Proportional to 59,412.70, 81,981.75 and 35,530.66

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Solution

The fourth proportional to 59,412.70, 81,981.75 and 35,530.66 is: 49,027.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,412.70 : 81,981.75 = 35,530.66 : x
  2. Step 2: Convert to fraction form
    59,412.70/81,981.75 = 35,530.66/x
  3. Step 3: Cross multiply
    59,412.70x = 81,981.75 × 35,530.66
  4. Step 4: Simplify right side
    59,412.70x = 2,912,865,685.46
  5. Step 5: Solve for x
    x = 2,912,865,685.46/59,412.70
  6. Step 6: Final answer
    x = 49,027.66

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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.