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Finding the Fourth Proportional to 12,717.39, 17,551.04 and 7,053.92

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Solution

The fourth proportional to 12,717.39, 17,551.04 and 7,053.92 is: 9,734.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.39 : 17,551.04 = 7,053.92 : x
  2. Step 2: Convert to fraction form
    12,717.39/17,551.04 = 7,053.92/x
  3. Step 3: Cross multiply
    12,717.39x = 17,551.04 × 7,053.92
  4. Step 4: Simplify right side
    12,717.39x = 123,803,632.08
  5. Step 5: Solve for x
    x = 123,803,632.08/12,717.39
  6. Step 6: Final answer
    x = 9,734.99

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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.