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Finding the Fourth Proportional to 12,375.84, 18,566.68 and 4,055.84

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Solution

The fourth proportional to 12,375.84, 18,566.68 and 4,055.84 is: 6,084.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.84 : 18,566.68 = 4,055.84 : x
  2. Step 2: Convert to fraction form
    12,375.84/18,566.68 = 4,055.84/x
  3. Step 3: Cross multiply
    12,375.84x = 18,566.68 × 4,055.84
  4. Step 4: Simplify right side
    12,375.84x = 75,303,483.41
  5. Step 5: Solve for x
    x = 75,303,483.41/12,375.84
  6. Step 6: Final answer
    x = 6,084.72

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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.