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Finding the Fourth Proportional to 60,363.43, 90,489.72 and 20,892.94

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Solution

The fourth proportional to 60,363.43, 90,489.72 and 20,892.94 is: 31,320.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,363.43 : 90,489.72 = 20,892.94 : x
  2. Step 2: Convert to fraction form
    60,363.43/90,489.72 = 20,892.94/x
  3. Step 3: Cross multiply
    60,363.43x = 90,489.72 × 20,892.94
  4. Step 4: Simplify right side
    60,363.43x = 1,890,596,475.42
  5. Step 5: Solve for x
    x = 1,890,596,475.42/60,363.43
  6. Step 6: Final answer
    x = 31,320.23

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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.