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Finding the Fourth Proportional to 25,436.36, 38,157.99 and 10,641.81

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Solution

The fourth proportional to 25,436.36, 38,157.99 and 10,641.81 is: 15,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,436.36 : 38,157.99 = 10,641.81 : x
  2. Step 2: Convert to fraction form
    25,436.36/38,157.99 = 10,641.81/x
  3. Step 3: Cross multiply
    25,436.36x = 38,157.99 × 10,641.81
  4. Step 4: Simplify right side
    25,436.36x = 406,070,182.75
  5. Step 5: Solve for x
    x = 406,070,182.75/25,436.36
  6. Step 6: Final answer
    x = 15,964.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.