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Finding the Fourth Proportional to 18,865.58, 26,051.02 and 11,804.00

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Solution

The fourth proportional to 18,865.58, 26,051.02 and 11,804.00 is: 16,299.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,865.58 : 26,051.02 = 11,804.00 : x
  2. Step 2: Convert to fraction form
    18,865.58/26,051.02 = 11,804.00/x
  3. Step 3: Cross multiply
    18,865.58x = 26,051.02 × 11,804.00
  4. Step 4: Simplify right side
    18,865.58x = 307,506,080.31
  5. Step 5: Solve for x
    x = 307,506,080.31/18,865.58
  6. Step 6: Final answer
    x = 16,299.85

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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.