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Finding the Fourth Proportional to 25,782.64, 38,667.64 and 8,248.84

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Solution

The fourth proportional to 25,782.64, 38,667.64 and 8,248.84 is: 12,371.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,782.64 : 38,667.64 = 8,248.84 : x
  2. Step 2: Convert to fraction form
    25,782.64/38,667.64 = 8,248.84/x
  3. Step 3: Cross multiply
    25,782.64x = 38,667.64 × 8,248.84
  4. Step 4: Simplify right side
    25,782.64x = 318,963,175.54
  5. Step 5: Solve for x
    x = 318,963,175.54/25,782.64
  6. Step 6: Final answer
    x = 12,371.24

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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.