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Finding the Fourth Proportional to 12,852.04, 17,733.50 and 7,186.90

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Solution

The fourth proportional to 12,852.04, 17,733.50 and 7,186.90 is: 9,916.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852.04 : 17,733.50 = 7,186.90 : x
  2. Step 2: Convert to fraction form
    12,852.04/17,733.50 = 7,186.90/x
  3. Step 3: Cross multiply
    12,852.04x = 17,733.50 × 7,186.90
  4. Step 4: Simplify right side
    12,852.04x = 127,448,891.15
  5. Step 5: Solve for x
    x = 127,448,891.15/12,852.04
  6. Step 6: Final answer
    x = 9,916.63

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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.