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Finding the Fourth Proportional to 12,718.62, 17,550.98 and 7,053.02

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Solution

The fourth proportional to 12,718.62, 17,550.98 and 7,053.02 is: 9,732.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.62 : 17,550.98 = 7,053.02 : x
  2. Step 2: Convert to fraction form
    12,718.62/17,550.98 = 7,053.02/x
  3. Step 3: Cross multiply
    12,718.62x = 17,550.98 × 7,053.02
  4. Step 4: Simplify right side
    12,718.62x = 123,787,412.96
  5. Step 5: Solve for x
    x = 123,787,412.96/12,718.62
  6. Step 6: Final answer
    x = 9,732.77

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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.