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Finding the Fourth Proportional to 13,012.46, 17,957.19 and 7,044.18

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Solution

The fourth proportional to 13,012.46, 17,957.19 and 7,044.18 is: 9,720.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.46 : 17,957.19 = 7,044.18 : x
  2. Step 2: Convert to fraction form
    13,012.46/17,957.19 = 7,044.18/x
  3. Step 3: Cross multiply
    13,012.46x = 17,957.19 × 7,044.18
  4. Step 4: Simplify right side
    13,012.46x = 126,493,637.73
  5. Step 5: Solve for x
    x = 126,493,637.73/13,012.46
  6. Step 6: Final answer
    x = 9,720.96

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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.