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Finding the Fourth Proportional to 13,737.67, 18,957.99 and 7,450.04

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Solution

The fourth proportional to 13,737.67, 18,957.99 and 7,450.04 is: 10,281.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,737.67 : 18,957.99 = 7,450.04 : x
  2. Step 2: Convert to fraction form
    13,737.67/18,957.99 = 7,450.04/x
  3. Step 3: Cross multiply
    13,737.67x = 18,957.99 × 7,450.04
  4. Step 4: Simplify right side
    13,737.67x = 141,237,783.82
  5. Step 5: Solve for x
    x = 141,237,783.82/13,737.67
  6. Step 6: Final answer
    x = 10,281.06

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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.