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Finding the Fourth Proportional to 25,449.28, 38,185.28 and 9,868.12

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Solution

The fourth proportional to 25,449.28, 38,185.28 and 9,868.12 is: 14,806.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,449.28 : 38,185.28 = 9,868.12 : x
  2. Step 2: Convert to fraction form
    25,449.28/38,185.28 = 9,868.12/x
  3. Step 3: Cross multiply
    25,449.28x = 38,185.28 × 9,868.12
  4. Step 4: Simplify right side
    25,449.28x = 376,816,925.27
  5. Step 5: Solve for x
    x = 376,816,925.27/25,449.28
  6. Step 6: Final answer
    x = 14,806.58

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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.