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Finding the Fourth Proportional to 13,573.62, 18,731.93 and 7,606.58

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Solution

The fourth proportional to 13,573.62, 18,731.93 and 7,606.58 is: 10,497.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,573.62 : 18,731.93 = 7,606.58 : x
  2. Step 2: Convert to fraction form
    13,573.62/18,731.93 = 7,606.58/x
  3. Step 3: Cross multiply
    13,573.62x = 18,731.93 × 7,606.58
  4. Step 4: Simplify right side
    13,573.62x = 142,485,792.41
  5. Step 5: Solve for x
    x = 142,485,792.41/13,573.62
  6. Step 6: Final answer
    x = 10,497.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.