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Finding the Fourth Proportional to 18,737.84, 25,852.02 and 12,367.60

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Solution

The fourth proportional to 18,737.84, 25,852.02 and 12,367.60 is: 17,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,737.84 : 25,852.02 = 12,367.60 : x
  2. Step 2: Convert to fraction form
    18,737.84/25,852.02 = 12,367.60/x
  3. Step 3: Cross multiply
    18,737.84x = 25,852.02 × 12,367.60
  4. Step 4: Simplify right side
    18,737.84x = 319,727,442.55
  5. Step 5: Solve for x
    x = 319,727,442.55/18,737.84
  6. Step 6: Final answer
    x = 17,063.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.