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Finding the Fourth Proportional to 19,366.40, 29,035.20 and 10,611.20

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Solution

The fourth proportional to 19,366.40, 29,035.20 and 10,611.20 is: 15,908.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,366.40 : 29,035.20 = 10,611.20 : x
  2. Step 2: Convert to fraction form
    19,366.40/29,035.20 = 10,611.20/x
  3. Step 3: Cross multiply
    19,366.40x = 29,035.20 × 10,611.20
  4. Step 4: Simplify right side
    19,366.40x = 308,098,314.24
  5. Step 5: Solve for x
    x = 308,098,314.24/19,366.40
  6. Step 6: Final answer
    x = 15,908.91

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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.