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Finding the Fourth Proportional to 86,601.57, 129,801.50 and 36,665.07

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Solution

The fourth proportional to 86,601.57, 129,801.50 and 36,665.07 is: 54,954.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,601.57 : 129,801.50 = 36,665.07 : x
  2. Step 2: Convert to fraction form
    86,601.57/129,801.50 = 36,665.07/x
  3. Step 3: Cross multiply
    86,601.57x = 129,801.50 × 36,665.07
  4. Step 4: Simplify right side
    86,601.57x = 4,759,181,083.61
  5. Step 5: Solve for x
    x = 4,759,181,083.61/86,601.57
  6. Step 6: Final answer
    x = 54,954.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.