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Finding the Fourth Proportional to 29,663.76, 40,918.20 and 19,592.24

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Solution

The fourth proportional to 29,663.76, 40,918.20 and 19,592.24 is: 27,025.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,663.76 : 40,918.20 = 19,592.24 : x
  2. Step 2: Convert to fraction form
    29,663.76/40,918.20 = 19,592.24/x
  3. Step 3: Cross multiply
    29,663.76x = 40,918.20 × 19,592.24
  4. Step 4: Simplify right side
    29,663.76x = 801,679,194.77
  5. Step 5: Solve for x
    x = 801,679,194.77/29,663.76
  6. Step 6: Final answer
    x = 27,025.54

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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.