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Finding the Fourth Proportional to 13,012.57, 17,957.32 and 7,044.34

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Solution

The fourth proportional to 13,012.57, 17,957.32 and 7,044.34 is: 9,721.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.57 : 17,957.32 = 7,044.34 : x
  2. Step 2: Convert to fraction form
    13,012.57/17,957.32 = 7,044.34/x
  3. Step 3: Cross multiply
    13,012.57x = 17,957.32 × 7,044.34
  4. Step 4: Simplify right side
    13,012.57x = 126,497,509.05
  5. Step 5: Solve for x
    x = 126,497,509.05/13,012.57
  6. Step 6: Final answer
    x = 9,721.17

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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.