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Finding the Fourth Proportional to 18,656.93, 25,745.96 and 10,158.93

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Solution

The fourth proportional to 18,656.93, 25,745.96 and 10,158.93 is: 14,018.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,656.93 : 25,745.96 = 10,158.93 : x
  2. Step 2: Convert to fraction form
    18,656.93/25,745.96 = 10,158.93/x
  3. Step 3: Cross multiply
    18,656.93x = 25,745.96 × 10,158.93
  4. Step 4: Simplify right side
    18,656.93x = 261,551,430.82
  5. Step 5: Solve for x
    x = 261,551,430.82/18,656.93
  6. Step 6: Final answer
    x = 14,018.99

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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.