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Finding the Fourth Proportional to 37,124.70, 55,662.45 and 20,492.70

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Solution

The fourth proportional to 37,124.70, 55,662.45 and 20,492.70 is: 30,725.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,124.70 : 55,662.45 = 20,492.70 : x
  2. Step 2: Convert to fraction form
    37,124.70/55,662.45 = 20,492.70/x
  3. Step 3: Cross multiply
    37,124.70x = 55,662.45 × 20,492.70
  4. Step 4: Simplify right side
    37,124.70x = 1,140,673,889.12
  5. Step 5: Solve for x
    x = 1,140,673,889.12/37,124.70
  6. Step 6: Final answer
    x = 30,725.47

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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.