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Finding the Fourth Proportional to 18,618.58, 25,692.99 and 10,235.02

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Solution

The fourth proportional to 18,618.58, 25,692.99 and 10,235.02 is: 14,123.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,618.58 : 25,692.99 = 10,235.02 : x
  2. Step 2: Convert to fraction form
    18,618.58/25,692.99 = 10,235.02/x
  3. Step 3: Cross multiply
    18,618.58x = 25,692.99 × 10,235.02
  4. Step 4: Simplify right side
    18,618.58x = 262,968,266.51
  5. Step 5: Solve for x
    x = 262,968,266.51/18,618.58
  6. Step 6: Final answer
    x = 14,123.97

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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.