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Finding the Fourth Proportional to 22,063.48, 30,447.06 and 12,631.24

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Solution

The fourth proportional to 22,063.48, 30,447.06 and 12,631.24 is: 17,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,063.48 : 30,447.06 = 12,631.24 : x
  2. Step 2: Convert to fraction form
    22,063.48/30,447.06 = 12,631.24/x
  3. Step 3: Cross multiply
    22,063.48x = 30,447.06 × 12,631.24
  4. Step 4: Simplify right side
    22,063.48x = 384,584,122.15
  5. Step 5: Solve for x
    x = 384,584,122.15/22,063.48
  6. Step 6: Final answer
    x = 17,430.80

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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.