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Finding the Fourth Proportional to 19,907.83, 27,472.83 and 10,955.88

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Solution

The fourth proportional to 19,907.83, 27,472.83 and 10,955.88 is: 15,119.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.83 : 27,472.83 = 10,955.88 : x
  2. Step 2: Convert to fraction form
    19,907.83/27,472.83 = 10,955.88/x
  3. Step 3: Cross multiply
    19,907.83x = 27,472.83 × 10,955.88
  4. Step 4: Simplify right side
    19,907.83x = 300,989,028.74
  5. Step 5: Solve for x
    x = 300,989,028.74/19,907.83
  6. Step 6: Final answer
    x = 15,119.13

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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.