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Finding the Fourth Proportional to 60,472.42, 90,665.28 and 28,433.56

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Solution

The fourth proportional to 60,472.42, 90,665.28 and 28,433.56 is: 42,629.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,472.42 : 90,665.28 = 28,433.56 : x
  2. Step 2: Convert to fraction form
    60,472.42/90,665.28 = 28,433.56/x
  3. Step 3: Cross multiply
    60,472.42x = 90,665.28 × 28,433.56
  4. Step 4: Simplify right side
    60,472.42x = 2,577,936,678.80
  5. Step 5: Solve for x
    x = 2,577,936,678.80/60,472.42
  6. Step 6: Final answer
    x = 42,629.96

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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.