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Finding the Fourth Proportional to 25,420.94, 38,131.42 and 6,952.94

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Solution

The fourth proportional to 25,420.94, 38,131.42 and 6,952.94 is: 10,429.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,420.94 : 38,131.42 = 6,952.94 : x
  2. Step 2: Convert to fraction form
    25,420.94/38,131.42 = 6,952.94/x
  3. Step 3: Cross multiply
    25,420.94x = 38,131.42 × 6,952.94
  4. Step 4: Simplify right side
    25,420.94x = 265,125,475.37
  5. Step 5: Solve for x
    x = 265,125,475.37/25,420.94
  6. Step 6: Final answer
    x = 10,429.41

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1.5x scale

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.