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Finding the Fourth Proportional to 22,646.76, 31,252.52 and 13,213.50

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Solution

The fourth proportional to 22,646.76, 31,252.52 and 13,213.50 is: 18,234.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,646.76 : 31,252.52 = 13,213.50 : x
  2. Step 2: Convert to fraction form
    22,646.76/31,252.52 = 13,213.50/x
  3. Step 3: Cross multiply
    22,646.76x = 31,252.52 × 13,213.50
  4. Step 4: Simplify right side
    22,646.76x = 412,955,173.02
  5. Step 5: Solve for x
    x = 412,955,173.02/22,646.76
  6. Step 6: Final answer
    x = 18,234.62

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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.