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Finding the Fourth Proportional to 25,934.31, 38,888.64 and 8,401.86

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Solution

The fourth proportional to 25,934.31, 38,888.64 and 8,401.86 is: 12,598.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,934.31 : 38,888.64 = 8,401.86 : x
  2. Step 2: Convert to fraction form
    25,934.31/38,888.64 = 8,401.86/x
  3. Step 3: Cross multiply
    25,934.31x = 38,888.64 × 8,401.86
  4. Step 4: Simplify right side
    25,934.31x = 326,736,908.87
  5. Step 5: Solve for x
    x = 326,736,908.87/25,934.31
  6. Step 6: Final answer
    x = 12,598.64

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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.