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Finding the Fourth Proportional to 18,807.26, 25,955.64 and 10,852.11

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Solution

The fourth proportional to 18,807.26, 25,955.64 and 10,852.11 is: 14,976.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,807.26 : 25,955.64 = 10,852.11 : x
  2. Step 2: Convert to fraction form
    18,807.26/25,955.64 = 10,852.11/x
  3. Step 3: Cross multiply
    18,807.26x = 25,955.64 × 10,852.11
  4. Step 4: Simplify right side
    18,807.26x = 281,673,460.40
  5. Step 5: Solve for x
    x = 281,673,460.40/18,807.26
  6. Step 6: Final answer
    x = 14,976.85

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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.