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Finding the Fourth Proportional to 14,497.88, 19,991.76 and 10,955.48

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Solution

The fourth proportional to 14,497.88, 19,991.76 and 10,955.48 is: 15,106.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,497.88 : 19,991.76 = 10,955.48 : x
  2. Step 2: Convert to fraction form
    14,497.88/19,991.76 = 10,955.48/x
  3. Step 3: Cross multiply
    14,497.88x = 19,991.76 × 10,955.48
  4. Step 4: Simplify right side
    14,497.88x = 219,019,326.84
  5. Step 5: Solve for x
    x = 219,019,326.84/14,497.88
  6. Step 6: Final answer
    x = 15,106.99

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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.