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Finding the Fourth Proportional to 18,576.93, 25,636.59 and 10,619.90

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Solution

The fourth proportional to 18,576.93, 25,636.59 and 10,619.90 is: 14,655.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576.93 : 25,636.59 = 10,619.90 : x
  2. Step 2: Convert to fraction form
    18,576.93/25,636.59 = 10,619.90/x
  3. Step 3: Cross multiply
    18,576.93x = 25,636.59 × 10,619.90
  4. Step 4: Simplify right side
    18,576.93x = 272,257,893.96
  5. Step 5: Solve for x
    x = 272,257,893.96/18,576.93
  6. Step 6: Final answer
    x = 14,655.70

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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.