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Finding the Fourth Proportional to 34,663.60, 51,995.40 and 21,473.20

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Solution

The fourth proportional to 34,663.60, 51,995.40 and 21,473.20 is: 32,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,663.60 : 51,995.40 = 21,473.20 : x
  2. Step 2: Convert to fraction form
    34,663.60/51,995.40 = 21,473.20/x
  3. Step 3: Cross multiply
    34,663.60x = 51,995.40 × 21,473.20
  4. Step 4: Simplify right side
    34,663.60x = 1,116,507,623.28
  5. Step 5: Solve for x
    x = 1,116,507,623.28/34,663.60
  6. Step 6: Final answer
    x = 32,209.80

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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.