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Finding the Fourth Proportional to 12,356.94, 17,053.79 and 7,052.55

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Solution

The fourth proportional to 12,356.94, 17,053.79 and 7,052.55 is: 9,733.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.94 : 17,053.79 = 7,052.55 : x
  2. Step 2: Convert to fraction form
    12,356.94/17,053.79 = 7,052.55/x
  3. Step 3: Cross multiply
    12,356.94x = 17,053.79 × 7,052.55
  4. Step 4: Simplify right side
    12,356.94x = 120,272,706.66
  5. Step 5: Solve for x
    x = 120,272,706.66/12,356.94
  6. Step 6: Final answer
    x = 9,733.21

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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.