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Finding the Fourth Proportional to 19,859.25, 27,406.53 and 10,907.13

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Solution

The fourth proportional to 19,859.25, 27,406.53 and 10,907.13 is: 15,052.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859.25 : 27,406.53 = 10,907.13 : x
  2. Step 2: Convert to fraction form
    19,859.25/27,406.53 = 10,907.13/x
  3. Step 3: Cross multiply
    19,859.25x = 27,406.53 × 10,907.13
  4. Step 4: Simplify right side
    19,859.25x = 298,926,580.58
  5. Step 5: Solve for x
    x = 298,926,580.58/19,859.25
  6. Step 6: Final answer
    x = 15,052.26

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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.