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Finding the Fourth Proportional to 18,607.96, 25,603.95 and 18,165.09

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Solution

The fourth proportional to 18,607.96, 25,603.95 and 18,165.09 is: 24,994.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.96 : 25,603.95 = 18,165.09 : x
  2. Step 2: Convert to fraction form
    18,607.96/25,603.95 = 18,165.09/x
  3. Step 3: Cross multiply
    18,607.96x = 25,603.95 × 18,165.09
  4. Step 4: Simplify right side
    18,607.96x = 465,097,965.28
  5. Step 5: Solve for x
    x = 465,097,965.28/18,607.96
  6. Step 6: Final answer
    x = 24,994.58

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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.