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Finding the Fourth Proportional to 18,858.89, 26,025.50 and 10,901.25

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Solution

The fourth proportional to 18,858.89, 26,025.50 and 10,901.25 is: 15,043.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,858.89 : 26,025.50 = 10,901.25 : x
  2. Step 2: Convert to fraction form
    18,858.89/26,025.50 = 10,901.25/x
  3. Step 3: Cross multiply
    18,858.89x = 26,025.50 × 10,901.25
  4. Step 4: Simplify right side
    18,858.89x = 283,710,509.13
  5. Step 5: Solve for x
    x = 283,710,509.13/18,858.89
  6. Step 6: Final answer
    x = 15,043.86

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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.