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Finding the Fourth Proportional to 37,578.58, 56,365.90 and 12,619.14

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Solution

The fourth proportional to 37,578.58, 56,365.90 and 12,619.14 is: 18,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,578.58 : 56,365.90 = 12,619.14 : x
  2. Step 2: Convert to fraction form
    37,578.58/56,365.90 = 12,619.14/x
  3. Step 3: Cross multiply
    37,578.58x = 56,365.90 × 12,619.14
  4. Step 4: Simplify right side
    37,578.58x = 711,289,292.96
  5. Step 5: Solve for x
    x = 711,289,292.96/37,578.58
  6. Step 6: Final answer
    x = 18,928.05

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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.