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Finding the Fourth Proportional to 77,033.16, 115,474.14 and 39,611.16

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Solution

The fourth proportional to 77,033.16, 115,474.14 and 39,611.16 is: 59,377.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,033.16 : 115,474.14 = 39,611.16 : x
  2. Step 2: Convert to fraction form
    77,033.16/115,474.14 = 39,611.16/x
  3. Step 3: Cross multiply
    77,033.16x = 115,474.14 × 39,611.16
  4. Step 4: Simplify right side
    77,033.16x = 4,574,064,635.40
  5. Step 5: Solve for x
    x = 4,574,064,635.40/77,033.16
  6. Step 6: Final answer
    x = 59,377.87

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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.