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Finding the Fourth Proportional to 13,013.15, 17,957.94 and 7,044.77

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Solution

The fourth proportional to 13,013.15, 17,957.94 and 7,044.77 is: 9,721.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.15 : 17,957.94 = 7,044.77 : x
  2. Step 2: Convert to fraction form
    13,013.15/17,957.94 = 7,044.77/x
  3. Step 3: Cross multiply
    13,013.15x = 17,957.94 × 7,044.77
  4. Step 4: Simplify right side
    13,013.15x = 126,509,431.96
  5. Step 5: Solve for x
    x = 126,509,431.96/13,013.15
  6. Step 6: Final answer
    x = 9,721.66

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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.