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Finding the Fourth Proportional to 37,312.94, 51,494.20 and 20,545.94

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Solution

The fourth proportional to 37,312.94, 51,494.20 and 20,545.94 is: 28,354.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,312.94 : 51,494.20 = 20,545.94 : x
  2. Step 2: Convert to fraction form
    37,312.94/51,494.20 = 20,545.94/x
  3. Step 3: Cross multiply
    37,312.94x = 51,494.20 × 20,545.94
  4. Step 4: Simplify right side
    37,312.94x = 1,057,996,743.55
  5. Step 5: Solve for x
    x = 1,057,996,743.55/37,312.94
  6. Step 6: Final answer
    x = 28,354.69

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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.