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Finding the Fourth Proportional to 28,471.80, 42,606.90 and 24,814.20

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Solution

The fourth proportional to 28,471.80, 42,606.90 and 24,814.20 is: 37,133.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471.80 : 42,606.90 = 24,814.20 : x
  2. Step 2: Convert to fraction form
    28,471.80/42,606.90 = 24,814.20/x
  3. Step 3: Cross multiply
    28,471.80x = 42,606.90 × 24,814.20
  4. Step 4: Simplify right side
    28,471.80x = 1,057,256,137.98
  5. Step 5: Solve for x
    x = 1,057,256,137.98/28,471.80
  6. Step 6: Final answer
    x = 37,133.45

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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.