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Finding the Fourth Proportional to 13,012.94, 17,957.90 and 7,044.68

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Solution

The fourth proportional to 13,012.94, 17,957.90 and 7,044.68 is: 9,721.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.94 : 17,957.90 = 7,044.68 : x
  2. Step 2: Convert to fraction form
    13,012.94/17,957.90 = 7,044.68/x
  3. Step 3: Cross multiply
    13,012.94x = 17,957.90 × 7,044.68
  4. Step 4: Simplify right side
    13,012.94x = 126,507,658.97
  5. Step 5: Solve for x
    x = 126,507,658.97/13,012.94
  6. Step 6: Final answer
    x = 9,721.68

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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.