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Finding the Fourth Proportional to 25,357.66, 38,039.95 and 10,563.12

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Solution

The fourth proportional to 25,357.66, 38,039.95 and 10,563.12 is: 15,846.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,357.66 : 38,039.95 = 10,563.12 : x
  2. Step 2: Convert to fraction form
    25,357.66/38,039.95 = 10,563.12/x
  3. Step 3: Cross multiply
    25,357.66x = 38,039.95 × 10,563.12
  4. Step 4: Simplify right side
    25,357.66x = 401,820,448.01
  5. Step 5: Solve for x
    x = 401,820,448.01/25,357.66
  6. Step 6: Final answer
    x = 15,846.12

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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.