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Finding the Fourth Proportional to 25,607.43, 38,411.15 and 8,079.03

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Solution

The fourth proportional to 25,607.43, 38,411.15 and 8,079.03 is: 12,118.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,607.43 : 38,411.15 = 8,079.03 : x
  2. Step 2: Convert to fraction form
    25,607.43/38,411.15 = 8,079.03/x
  3. Step 3: Cross multiply
    25,607.43x = 38,411.15 × 8,079.03
  4. Step 4: Simplify right side
    25,607.43x = 310,324,792.79
  5. Step 5: Solve for x
    x = 310,324,792.79/25,607.43
  6. Step 6: Final answer
    x = 12,118.55

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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.