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Finding the Fourth Proportional to 28,581.66, 42,814.17 and 14,701.50

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Solution

The fourth proportional to 28,581.66, 42,814.17 and 14,701.50 is: 22,022.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,581.66 : 42,814.17 = 14,701.50 : x
  2. Step 2: Convert to fraction form
    28,581.66/42,814.17 = 14,701.50/x
  3. Step 3: Cross multiply
    28,581.66x = 42,814.17 × 14,701.50
  4. Step 4: Simplify right side
    28,581.66x = 629,432,520.26
  5. Step 5: Solve for x
    x = 629,432,520.26/28,581.66
  6. Step 6: Final answer
    x = 22,022.25

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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.