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Finding the Fourth Proportional to 13,012.54, 17,957.36 and 7,044.21

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Solution

The fourth proportional to 13,012.54, 17,957.36 and 7,044.21 is: 9,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.54 : 17,957.36 = 7,044.21 : x
  2. Step 2: Convert to fraction form
    13,012.54/17,957.36 = 7,044.21/x
  3. Step 3: Cross multiply
    13,012.54x = 17,957.36 × 7,044.21
  4. Step 4: Simplify right side
    13,012.54x = 126,495,432.50
  5. Step 5: Solve for x
    x = 126,495,432.50/13,012.54
  6. Step 6: Final answer
    x = 9,721.04

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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.