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Finding the Fourth Proportional to 24,520.74, 36,787.28 and 6,990.59

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Solution

The fourth proportional to 24,520.74, 36,787.28 and 6,990.59 is: 10,487.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,520.74 : 36,787.28 = 6,990.59 : x
  2. Step 2: Convert to fraction form
    24,520.74/36,787.28 = 6,990.59/x
  3. Step 3: Cross multiply
    24,520.74x = 36,787.28 × 6,990.59
  4. Step 4: Simplify right side
    24,520.74x = 257,164,572.81
  5. Step 5: Solve for x
    x = 257,164,572.81/24,520.74
  6. Step 6: Final answer
    x = 10,487.64

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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.