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Finding the Fourth Proportional to 25,158.60, 37,737.90 and 7,629.30

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Solution

The fourth proportional to 25,158.60, 37,737.90 and 7,629.30 is: 11,443.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,158.60 : 37,737.90 = 7,629.30 : x
  2. Step 2: Convert to fraction form
    25,158.60/37,737.90 = 7,629.30/x
  3. Step 3: Cross multiply
    25,158.60x = 37,737.90 × 7,629.30
  4. Step 4: Simplify right side
    25,158.60x = 287,913,760.47
  5. Step 5: Solve for x
    x = 287,913,760.47/25,158.60
  6. Step 6: Final answer
    x = 11,443.95

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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.