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Finding the Fourth Proportional to 60,661.51, 90,919.67 and 39,611.63

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Solution

The fourth proportional to 60,661.51, 90,919.67 and 39,611.63 is: 59,370.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,661.51 : 90,919.67 = 39,611.63 : x
  2. Step 2: Convert to fraction form
    60,661.51/90,919.67 = 39,611.63/x
  3. Step 3: Cross multiply
    60,661.51x = 90,919.67 × 39,611.63
  4. Step 4: Simplify right side
    60,661.51x = 3,601,476,357.00
  5. Step 5: Solve for x
    x = 3,601,476,357.00/60,661.51
  6. Step 6: Final answer
    x = 59,370.04

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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.