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Finding the Fourth Proportional to 24,487.74, 36,780.84 and 21,399.98

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Solution

The fourth proportional to 24,487.74, 36,780.84 and 21,399.98 is: 32,142.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,487.74 : 36,780.84 = 21,399.98 : x
  2. Step 2: Convert to fraction form
    24,487.74/36,780.84 = 21,399.98/x
  3. Step 3: Cross multiply
    24,487.74x = 36,780.84 × 21,399.98
  4. Step 4: Simplify right side
    24,487.74x = 787,109,056.48
  5. Step 5: Solve for x
    x = 787,109,056.48/24,487.74
  6. Step 6: Final answer
    x = 32,142.98

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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.