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Finding the Fourth Proportional to 17,262.80, 23,812.40 and 10,886.80

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Solution

The fourth proportional to 17,262.80, 23,812.40 and 10,886.80 is: 15,017.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,262.80 : 23,812.40 = 10,886.80 : x
  2. Step 2: Convert to fraction form
    17,262.80/23,812.40 = 10,886.80/x
  3. Step 3: Cross multiply
    17,262.80x = 23,812.40 × 10,886.80
  4. Step 4: Simplify right side
    17,262.80x = 259,240,836.32
  5. Step 5: Solve for x
    x = 259,240,836.32/17,262.80
  6. Step 6: Final answer
    x = 15,017.31

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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.