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Finding the Fourth Proportional to 18,501.68, 25,532.52 and 10,118

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Solution

The fourth proportional to 18,501.68, 25,532.52 and 10,118 is: 13,962.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,501.68 : 25,532.52 = 10,118 : x
  2. Step 2: Convert to fraction form
    18,501.68/25,532.52 = 10,118/x
  3. Step 3: Cross multiply
    18,501.68x = 25,532.52 × 10,118
  4. Step 4: Simplify right side
    18,501.68x = 258,338,037.36
  5. Step 5: Solve for x
    x = 258,338,037.36/18,501.68
  6. Step 6: Final answer
    x = 13,962.95

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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.