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Finding the Fourth Proportional to 13,012.93, 17,957.83 and 7,044.65

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Solution

The fourth proportional to 13,012.93, 17,957.83 and 7,044.65 is: 9,721.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.93 : 17,957.83 = 7,044.65 : x
  2. Step 2: Convert to fraction form
    13,012.93/17,957.83 = 7,044.65/x
  3. Step 3: Cross multiply
    13,012.93x = 17,957.83 × 7,044.65
  4. Step 4: Simplify right side
    13,012.93x = 126,506,627.11
  5. Step 5: Solve for x
    x = 126,506,627.11/13,012.93
  6. Step 6: Final answer
    x = 9,721.61

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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.