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Finding the Fourth Proportional to 51,311.80, 76,967.70 and 23,663.80

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Solution

The fourth proportional to 51,311.80, 76,967.70 and 23,663.80 is: 35,495.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,311.80 : 76,967.70 = 23,663.80 : x
  2. Step 2: Convert to fraction form
    51,311.80/76,967.70 = 23,663.80/x
  3. Step 3: Cross multiply
    51,311.80x = 76,967.70 × 23,663.80
  4. Step 4: Simplify right side
    51,311.80x = 1,821,348,259.26
  5. Step 5: Solve for x
    x = 1,821,348,259.26/51,311.80
  6. Step 6: Final answer
    x = 35,495.70

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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.