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Finding the Fourth Proportional to 11,325.40, 16,955.70 and 10,029.40

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Solution

The fourth proportional to 11,325.40, 16,955.70 and 10,029.40 is: 15,015.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.40 : 16,955.70 = 10,029.40 : x
  2. Step 2: Convert to fraction form
    11,325.40/16,955.70 = 10,029.40/x
  3. Step 3: Cross multiply
    11,325.40x = 16,955.70 × 10,029.40
  4. Step 4: Simplify right side
    11,325.40x = 170,055,497.58
  5. Step 5: Solve for x
    x = 170,055,497.58/11,325.40
  6. Step 6: Final answer
    x = 15,015.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.