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Finding the Fourth Proportional to 24,384.60, 36,576.90 and 12,720.60

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Solution

The fourth proportional to 24,384.60, 36,576.90 and 12,720.60 is: 19,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,384.60 : 36,576.90 = 12,720.60 : x
  2. Step 2: Convert to fraction form
    24,384.60/36,576.90 = 12,720.60/x
  3. Step 3: Cross multiply
    24,384.60x = 36,576.90 × 12,720.60
  4. Step 4: Simplify right side
    24,384.60x = 465,280,114.14
  5. Step 5: Solve for x
    x = 465,280,114.14/24,384.60
  6. Step 6: Final answer
    x = 19,080.90

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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.