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Finding the Fourth Proportional to 34,178.40, 51,296.40 and 16,663.20

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Solution

The fourth proportional to 34,178.40, 51,296.40 and 16,663.20 is: 25,008.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,178.40 : 51,296.40 = 16,663.20 : x
  2. Step 2: Convert to fraction form
    34,178.40/51,296.40 = 16,663.20/x
  3. Step 3: Cross multiply
    34,178.40x = 51,296.40 × 16,663.20
  4. Step 4: Simplify right side
    34,178.40x = 854,762,172.48
  5. Step 5: Solve for x
    x = 854,762,172.48/34,178.40
  6. Step 6: Final answer
    x = 25,008.84

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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.