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Finding the Fourth Proportional to 14,611.58, 21,900.92 and 7,200.34

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Solution

The fourth proportional to 14,611.58, 21,900.92 and 7,200.34 is: 10,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,611.58 : 21,900.92 = 7,200.34 : x
  2. Step 2: Convert to fraction form
    14,611.58/21,900.92 = 7,200.34/x
  3. Step 3: Cross multiply
    14,611.58x = 21,900.92 × 7,200.34
  4. Step 4: Simplify right side
    14,611.58x = 157,694,070.31
  5. Step 5: Solve for x
    x = 157,694,070.31/14,611.58
  6. Step 6: Final answer
    x = 10,792.40

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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.