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Finding the Fourth Proportional to 25,575.14, 38,362.80 and 8,935.10

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Solution

The fourth proportional to 25,575.14, 38,362.80 and 8,935.10 is: 13,402.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,575.14 : 38,362.80 = 8,935.10 : x
  2. Step 2: Convert to fraction form
    25,575.14/38,362.80 = 8,935.10/x
  3. Step 3: Cross multiply
    25,575.14x = 38,362.80 × 8,935.10
  4. Step 4: Simplify right side
    25,575.14x = 342,775,454.28
  5. Step 5: Solve for x
    x = 342,775,454.28/25,575.14
  6. Step 6: Final answer
    x = 13,402.68

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Why These Related Problems?

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